Layer group uniforms (#2247)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

CMakeLists.txt

@@ -1228,7 +1228,6 @@ if(MBGL_WITH_METAL)
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/hillshade.hpp
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/hillshade_prepare.hpp
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/line.hpp
-            ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/line_gradient.hpp
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/raster.hpp
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/shader_group.hpp
             ${PROJECT_SOURCE_DIR}/include/mbgl/shaders/mtl/shader_program.hpp
@@ -1274,7 +1273,6 @@ if(MBGL_WITH_METAL)
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/hillshade.cpp
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/hillshade_prepare.cpp
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/line.cpp
-            ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/line_gradient.cpp
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/raster.cpp
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/symbol_icon.cpp
             ${PROJECT_SOURCE_DIR}src/mbgl/shaders/mtl/symbol_sdf.cpp

bazel/core.bzl

@@ -1072,7 +1072,6 @@ MLN_DRAWABLES_MTL_SOURCE = [
     "src/mbgl/shaders/mtl/hillshade.cpp",
     "src/mbgl/shaders/mtl/hillshade_prepare.cpp",
     "src/mbgl/shaders/mtl/line.cpp",
-    "src/mbgl/shaders/mtl/line_gradient.cpp",
     "src/mbgl/shaders/mtl/raster.cpp",
     "src/mbgl/shaders/mtl/symbol_icon.cpp",
     "src/mbgl/shaders/mtl/symbol_sdf.cpp",
@@ -1117,7 +1116,6 @@ MLN_DRAWABLES_MTL_HEADERS = [
     "include/mbgl/shaders/mtl/hillshade.hpp",
     "include/mbgl/shaders/mtl/hillshade_prepare.hpp",
     "include/mbgl/shaders/mtl/line.hpp",
-    "include/mbgl/shaders/mtl/line_gradient.hpp",
     "include/mbgl/shaders/mtl/raster.hpp",
     "include/mbgl/shaders/mtl/shader_group.hpp",
     "include/mbgl/shaders/mtl/shader_program.hpp",

include/mbgl/gl/layer_group_gl.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/layer_group.hpp>
+#include <mbgl/gl/uniform_buffer_gl.hpp>
 
 namespace mbgl {
 
@@ -19,7 +20,15 @@ public:
     void upload(gfx::UploadPass&) override;
     void render(RenderOrchestrator&, PaintParameters&) override;
 
+    const gfx::UniformBufferArray& getUniformBuffers() const override { return uniformBuffers; };
+
+    gfx::UniformBufferArray& mutableUniformBuffers() override { return uniformBuffers; };
+
+    void bindUniformBuffers() const;
+    void unbindUniformBuffers() const;
+
 protected:
+    UniformBufferArrayGL uniformBuffers;
 };
 
 /**
@@ -33,7 +42,15 @@ public:
     void upload(gfx::UploadPass&) override;
     void render(RenderOrchestrator&, PaintParameters&) override;
 
+    const gfx::UniformBufferArray& getUniformBuffers() const override { return uniformBuffers; };
+
+    gfx::UniformBufferArray& mutableUniformBuffers() override { return uniformBuffers; };
+
+    void bindUniformBuffers() const;
+    void unbindUniformBuffers() const;
+
 protected:
+    UniformBufferArrayGL uniformBuffers;
 };
 
 } // namespace gl

include/mbgl/mtl/layer_group.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/renderer/layer_group.hpp>
+#include <mbgl/mtl/uniform_buffer.hpp>
 
 namespace mbgl {
 
@@ -8,6 +9,8 @@ class PaintParameters;
 
 namespace mtl {
 
+class RenderPass;
+
 /**
  A layer group for non-tile-based drawables
  */
@@ -19,7 +22,15 @@ public:
     void upload(gfx::UploadPass&) override;
     void render(RenderOrchestrator&, PaintParameters&) override;
 
+    const gfx::UniformBufferArray& getUniformBuffers() const override { return uniformBuffers; };
+
+    gfx::UniformBufferArray& mutableUniformBuffers() override { return uniformBuffers; };
+
+    void bindUniformBuffers(RenderPass&) const noexcept;
+    void unbindUniformBuffers(RenderPass&) const noexcept {}
+
 protected:
+    UniformBufferArray uniformBuffers;
 };
 
 } // namespace mtl

include/mbgl/mtl/tile_layer_group.hpp

@@ -1,6 +1,7 @@
 #pragma once
 
 #include <mbgl/mtl/mtl_fwd.hpp>
+#include <mbgl/mtl/uniform_buffer.hpp>
 #include <mbgl/renderer/layer_group.hpp>
 
 #include <Foundation/NSSharedPtr.hpp>
@@ -13,6 +14,8 @@ class PaintParameters;
 
 namespace mtl {
 
+class RenderPass;
+
 /**
  A layer group for tile-based drawables
  */
@@ -24,9 +27,17 @@ public:
     void upload(gfx::UploadPass&) override;
     void render(RenderOrchestrator&, PaintParameters&) override;
 
+    const gfx::UniformBufferArray& getUniformBuffers() const override { return uniformBuffers; };
+
+    gfx::UniformBufferArray& mutableUniformBuffers() override { return uniformBuffers; };
+
+    void bindUniformBuffers(RenderPass&) const noexcept;
+    void unbindUniformBuffers(RenderPass&) const noexcept {}
+
 protected:
     std::optional<MTLDepthStencilStatePtr> stateNone;
     std::optional<MTLDepthStencilStatePtr> stateDepth;
+    UniformBufferArray uniformBuffers;
 };
 
 } // namespace mtl

include/mbgl/renderer/layer_group.hpp

@@ -101,6 +101,12 @@ public:
 
     void runTweakers(const RenderTree&, PaintParameters&);
 
+    /// Get the uniform buffers attached to this layer group
+    virtual const gfx::UniformBufferArray& getUniformBuffers() const = 0;
+
+    /// Get the mutable uniform buffer array attached to this layer group
+    virtual gfx::UniformBufferArray& mutableUniformBuffers() = 0;
+
 protected:
     const Type type;
     bool enabled = true;

include/mbgl/shaders/background_layer_ubo.hpp

@@ -7,10 +7,13 @@
 namespace mbgl {
 namespace shaders {
 
+//
+// Background
+
 struct alignas(16) BackgroundDrawableUBO {
     std::array<float, 4 * 4> matrix;
 };
-static_assert(sizeof(BackgroundDrawableUBO) % 16 == 0);
+static_assert(sizeof(BackgroundDrawableUBO) == 64);
 
 struct alignas(16) BackgroundLayerUBO {
     /*  0 */ Color color;
@@ -20,6 +23,18 @@ struct alignas(16) BackgroundLayerUBO {
 };
 static_assert(sizeof(BackgroundLayerUBO) == 32);
 
+//
+// Background pattern
+
+struct alignas(16) BackgroundPatternDrawableUBO {
+    std::array<float, 4 * 4> matrix;
+    std::array<float, 2> pixel_coord_upper;
+    std::array<float, 2> pixel_coord_lower;
+    float tile_units_to_pixels;
+    float pad1, pad2, pad3;
+};
+static_assert(sizeof(BackgroundPatternDrawableUBO) == 96);
+
 struct alignas(16) BackgroundPatternLayerUBO {
     /*  0 */ std::array<float, 2> pattern_tl_a;
     /*  8 */ std::array<float, 2> pattern_br_a;
@@ -28,17 +43,14 @@ struct alignas(16) BackgroundPatternLayerUBO {
     /* 32 */ std::array<float, 2> texsize;
     /* 40 */ std::array<float, 2> pattern_size_a;
     /* 48 */ std::array<float, 2> pattern_size_b;
-    /* 56 */ std::array<float, 2> pixel_coord_upper;
-    /* 64 */ std::array<float, 2> pixel_coord_lower;
-    /* 72 */ float tile_units_to_pixels;
-    /* 76 */ float scale_a;
-    /* 80 */ float scale_b;
-    /* 84 */ float mix;
-    /* 88 */ float opacity;
-    /* 92 */ float pad1;
-    /* 96 */
+    /* 56 */ float scale_a;
+    /* 60 */ float scale_b;
+    /* 64 */ float mix;
+    /* 68 */ float opacity;
+    /* 72 */ float pad1, pad2;
+    /* 80 */
 };
-static_assert(sizeof(BackgroundPatternLayerUBO) == 96);
+static_assert(sizeof(BackgroundPatternLayerUBO) == 80);
 
 enum {
     idBackgroundDrawableUBO,

include/mbgl/shaders/fill_extrusion_layer_ubo.hpp

@@ -20,7 +20,7 @@ struct alignas(16) FillExtrusionDrawableUBO {
 static_assert(sizeof(FillExtrusionDrawableUBO) == 7 * 16);
 
 /// Evaluated properties that do not depend on the tile
-struct alignas(16) FillExtrusionDrawablePropsUBO {
+struct alignas(16) FillExtrusionPropsUBO {
     /*  0 */ Color color;
     /* 16 */ std::array<float, 3> light_color;
     /* 28 */ float pad1;
@@ -34,15 +34,15 @@ struct alignas(16) FillExtrusionDrawablePropsUBO {
     /* 68 */ float pad2, pad3, pad4;
     /* 80 */
 };
-static_assert(sizeof(FillExtrusionDrawablePropsUBO) == 5 * 16);
+static_assert(sizeof(FillExtrusionPropsUBO) == 5 * 16);
 
 /// Evaluated properties that depend on the tile
-struct alignas(16) FillExtrusionDrawableTilePropsUBO {
+struct alignas(16) FillExtrusionTilePropsUBO {
     /*  0 */ std::array<float, 4> pattern_from;
     /* 16 */ std::array<float, 4> pattern_to;
     /* 32 */
 };
-static_assert(sizeof(FillExtrusionDrawableTilePropsUBO) == 2 * 16);
+static_assert(sizeof(FillExtrusionTilePropsUBO) == 2 * 16);
 
 /// Attribute interpolations
 struct alignas(16) FillExtrusionInterpolateUBO {
@@ -58,8 +58,8 @@ static_assert(sizeof(FillExtrusionInterpolateUBO) == 2 * 16);
 
 enum {
     idFillExtrusionDrawableUBO,
-    idFillExtrusionDrawablePropsUBO,
-    idFillExtrusionDrawableTilePropsUBO,
+    idFillExtrusionPropsUBO,
+    idFillExtrusionTilePropsUBO,
     idFillExtrusionInterpolateUBO,
     fillExtrusionUBOCount
 };

include/mbgl/shaders/fill_layer_ubo.hpp

@@ -13,13 +13,6 @@ struct alignas(16) FillDrawableUBO {
 };
 static_assert(sizeof(FillDrawableUBO) == 4 * 16);
 
-struct alignas(16) FillEvaluatedPropsUBO {
-    Color color;
-    float opacity;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(FillEvaluatedPropsUBO) == 2 * 16);
-
 struct alignas(16) FillInterpolateUBO {
     float color_t;
     float opacity_t;
@@ -27,13 +20,6 @@ struct alignas(16) FillInterpolateUBO {
 };
 static_assert(sizeof(FillInterpolateUBO) % 16 == 0);
 
-enum {
-    idFillDrawableUBO,
-    idFillEvaluatedPropsUBO,
-    idFillInterpolateUBO,
-    fillUBOCount
-};
-
 //
 // Fill outline
 
@@ -45,13 +31,6 @@ struct alignas(16) FillOutlineDrawableUBO {
 };
 static_assert(sizeof(FillOutlineDrawableUBO) == 5 * 16);
 
-struct alignas(16) FillOutlineEvaluatedPropsUBO {
-    Color outline_color;
-    float opacity;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(FillOutlineEvaluatedPropsUBO) == 2 * 16);
-
 struct alignas(16) FillOutlineInterpolateUBO {
     float outline_color_t;
     float opacity_t;
@@ -59,13 +38,6 @@ struct alignas(16) FillOutlineInterpolateUBO {
 };
 static_assert(sizeof(FillOutlineInterpolateUBO) == 1 * 16);
 
-enum {
-    idFillOutlineDrawableUBO,
-    idFillOutlineEvaluatedPropsUBO,
-    idFillOutlineInterpolateUBO,
-    fillOutlineUBOCount
-};
-
 //
 // Fill Pattern
 
@@ -80,13 +52,6 @@ struct alignas(16) FillPatternDrawableUBO {
 };
 static_assert(sizeof(FillPatternDrawableUBO) == 7 * 16);
 
-struct alignas(16) FillPatternEvaluatedPropsUBO {
-    float opacity;
-    float fade;
-    float pad1, pad2;
-};
-static_assert(sizeof(FillPatternEvaluatedPropsUBO) == 1 * 16);
-
 struct alignas(16) FillPatternTilePropsUBO {
     std::array<float, 4> pattern_from;
     std::array<float, 4> pattern_to;
@@ -101,14 +66,6 @@ struct alignas(16) FillPatternInterpolateUBO {
 };
 static_assert(sizeof(FillPatternInterpolateUBO) == 1 * 16);
 
-enum {
-    idFillPatternDrawableUBO,
-    idFillPatternTilePropsUBO,
-    idFillPatternEvaluatedPropsUBO,
-    idFillPatternInterpolateUBO,
-    fillPatternUBOCount
-};
-
 //
 // Fill pattern outline
 
@@ -122,13 +79,6 @@ struct alignas(16) FillOutlinePatternDrawableUBO {
 };
 static_assert(sizeof(FillOutlinePatternDrawableUBO) == 7 * 16);
 
-struct alignas(16) FillOutlinePatternEvaluatedPropsUBO {
-    float opacity;
-    float fade;
-    float pad1, pad2;
-};
-static_assert(sizeof(FillOutlinePatternEvaluatedPropsUBO) == 16);
-
 struct alignas(16) FillOutlinePatternTilePropsUBO {
     std::array<float, 4> pattern_from;
     std::array<float, 4> pattern_to;
@@ -143,14 +93,6 @@ struct alignas(16) FillOutlinePatternInterpolateUBO {
 };
 static_assert(sizeof(FillOutlinePatternInterpolateUBO) == 1 * 16);
 
-enum {
-    idFillOutlinePatternDrawableUBO,
-    idFillOutlinePatternTilePropsUBO,
-    idFillOutlinePatternEvaluatedPropsUBO,
-    idFillOutlinePatternInterpolateUBO,
-    fillOutlinePatternUBOCount
-};
-
 //
 // Fill outline triangulated
 
@@ -162,18 +104,25 @@ struct alignas(16) FillOutlineTriangulatedDrawableUBO {
 };
 static_assert(sizeof(FillOutlineTriangulatedDrawableUBO) % 16 == 0);
 
-struct alignas(16) FillOutlineTriangulatedPropertiesUBO {
+//
+// Fill evaluated properties
+
+struct alignas(16) FillEvaluatedPropsUBO {
     Color color;
+    Color outline_color;
     float opacity;
+    float fade;
     float width;
-    float pad1, pad2;
+    float pad1;
 };
-static_assert(sizeof(FillOutlineTriangulatedPropertiesUBO) % 16 == 0);
+static_assert(sizeof(FillEvaluatedPropsUBO) == 3 * 16);
 
 enum {
-    idFillOutlineTriangulatedDrawableUBO,
-    idFillOutlineTriangulatedPropertiesUBO,
-    fillOutlineTriangulatedUBOCount
+    idFillDrawableUBO,
+    idFillTilePropsUBO,
+    idFillInterpolateUBO,
+    idFillEvaluatedPropsUBO,
+    fillUBOCount
 };
 
 } // namespace shaders

include/mbgl/shaders/gl/drawable_background.hpp

@@ -19,11 +19,12 @@ void main() {
 )";
     static constexpr const char* fragment = R"(layout (std140) uniform BackgroundLayerUBO {
     highp vec4 u_color;
-    highp vec4 u_opacity_pad3;
+    highp float u_opacity;
+    highp float layer_pad1, layer_pad2, layer_pad3;
 };
 
 void main() {
-    fragColor = u_color * u_opacity_pad3.x;
+    fragColor = u_color * u_opacity;
 #ifdef OVERDRAW_INSPECTOR
     fragColor = vec4(1.0);
 #endif

include/mbgl/shaders/gl/drawable_background_pattern.hpp

@@ -8,10 +8,14 @@ namespace shaders {
 template <>
 struct ShaderSource<BuiltIn::BackgroundPatternShader, gfx::Backend::Type::OpenGL> {
     static constexpr const char* name = "BackgroundPatternShader";
-    static constexpr const char* vertex = R"(layout (std140) uniform BackgroundDrawableUBO {
+    static constexpr const char* vertex = R"(layout (std140) uniform BackgroundPatternDrawableUBO {
     highp mat4 u_matrix;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_tile_units_to_pixels;
+    highp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
-layout (std140) uniform BackgroundLayerUBO {
+layout (std140) uniform BackgroundPatternLayerUBO {
     highp vec2 u_pattern_tl_a;
     highp vec2 u_pattern_br_a;
     highp vec2 u_pattern_tl_b;
@@ -19,14 +23,11 @@ layout (std140) uniform BackgroundLayerUBO {
     highp vec2 u_texsize;
     highp vec2 u_pattern_size_a;
     highp vec2 u_pattern_size_b;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_tile_units_to_pixels;
     highp float u_scale_a;
     highp float u_scale_b;
     highp float u_mix;
     highp float u_opacity;
-    highp float pad;
+    highp float layer_pad1, layer_pad2;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -40,7 +41,7 @@ void main() {
     v_pos_b = get_pattern_pos(u_pixel_coord_upper, u_pixel_coord_lower, u_scale_b * u_pattern_size_b, u_tile_units_to_pixels, a_pos);
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform BackgroundLayerUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform BackgroundPatternLayerUBO {
     highp vec2 u_pattern_tl_a;
     highp vec2 u_pattern_br_a;
     highp vec2 u_pattern_tl_b;
@@ -48,14 +49,11 @@ void main() {
     highp vec2 u_texsize;
     highp vec2 u_pattern_size_a;
     highp vec2 u_pattern_size_b;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_tile_units_to_pixels;
     highp float u_scale_a;
     highp float u_scale_b;
     highp float u_mix;
     highp float u_opacity;
-    highp float pad;
+    highp float layer_pad1, layer_pad2;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_circle.hpp

@@ -14,13 +14,13 @@ out vec3 v_data;
 layout (std140) uniform CircleDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_extrude_scale;
-    lowp vec2 pad2_;
+    lowp vec2 drawable_pad1;
 };
 
 layout (std140) uniform CirclePaintParamsUBO {
     highp float u_camera_to_center_distance;
-    lowp float pad3_;
-    lowp vec2 pad4_;
+    lowp float params_pad1;
+    lowp vec2 params_pad2;
 };
 
 layout (std140) uniform CircleEvaluatedPropsUBO {
@@ -33,7 +33,7 @@ layout (std140) uniform CircleEvaluatedPropsUBO {
     lowp float u_stroke_opacity;
     bool u_scale_with_map;
     bool u_pitch_with_map;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 layout (std140) uniform CircleInterpolateUBO {
@@ -44,7 +44,7 @@ layout (std140) uniform CircleInterpolateUBO {
     lowp float u_stroke_color_t;
     lowp float u_stroke_width_t;
     lowp float u_stroke_opacity_t;
-    lowp float pad1_;
+    lowp float interp_pad1;
 };
 
 #ifndef HAS_UNIFORM_u_color
@@ -162,7 +162,7 @@ layout (std140) uniform CircleEvaluatedPropsUBO {
     lowp float u_stroke_opacity;
     bool u_scale_with_map;
     bool u_pitch_with_map;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 #ifndef HAS_UNIFORM_u_color

include/mbgl/shaders/gl/drawable_custom_symbol_icon.hpp

@@ -23,7 +23,7 @@ layout(std140) uniform CustomSymbolIconParametersUBO {
     bool u_pitch_with_map;
     highp float u_camera_to_center_distance;
     highp float u_aspect_ratio;
-    highp float pad0, pad1, pad3;
+    highp float params_pad1, params_pad2, params_pad3;
 };
 
 out vec2 v_tex;

include/mbgl/shaders/gl/drawable_fill.hpp

@@ -11,17 +11,18 @@ struct ShaderSource<BuiltIn::FillShader, gfx::Backend::Type::OpenGL> {
     static constexpr const char* vertex = R"(layout (std140) uniform FillDrawableUBO {
     highp mat4 u_matrix;
 };
-layout (std140) uniform FillEvaluatedPropsUBO {
-    highp vec4 u_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
 layout (std140) uniform FillInterpolateUBO {
     highp float u_color_t;
     highp float u_opacity_t;
-    highp float pad_interp_1, pad_interp_2;
+    highp float interp_pad1, interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -50,17 +51,18 @@ lowp float opacity = u_opacity;
     gl_Position = u_matrix * vec4(a_pos, 0, 1);
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform FillEvaluatedPropsUBO {
-    highp vec4 u_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
-layout (std140) uniform FillInterpolateUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform FillInterpolateUBO {
     highp float u_color_t;
     highp float u_opacity_t;
-    highp float pad_interp_1, pad_interp_2;
+    highp float interp_pad1, interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 #ifndef HAS_UNIFORM_u_color

include/mbgl/shaders/gl/drawable_fill_extrusion.hpp

@@ -12,7 +12,29 @@ struct ShaderSource<BuiltIn::FillExtrusionShader, gfx::Backend::Type::OpenGL> {
 layout (location = 1) in vec4 a_normal_ed;
 out vec4 v_color;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -22,31 +44,8 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
-};
-
 #ifndef HAS_UNIFORM_u_base
 layout (location = 2) in highp vec2 a_base;
 #endif

include/mbgl/shaders/gl/drawable_fill_extrusion_pattern.hpp

@@ -15,7 +15,29 @@ out vec2 v_pos_a;
 out vec2 v_pos_b;
 out vec4 v_lighting;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -25,29 +47,7 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
-};
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
 
 #ifndef HAS_UNIFORM_u_base
@@ -140,7 +140,29 @@ mediump vec4 pattern_to = u_pattern_to;
 in vec2 v_pos_b;
 in vec4 v_lighting;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -150,29 +172,7 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
-};
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_fill_outline.hpp

@@ -11,20 +11,21 @@ struct ShaderSource<BuiltIn::FillOutlineShader, gfx::Backend::Type::OpenGL> {
     static constexpr const char* vertex = R"(layout (std140) uniform FillOutlineDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
-    highp vec2 pad;
-};
-layout (std140) uniform FillOutlineEvaluatedPropsUBO {
-    highp vec4 u_outline_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
+    highp vec2 drawable_pad1;
 };
 layout (std140) uniform FillOutlineInterpolateUBO {
     highp float u_outline_color_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
-    highp float u_padding_interp2;
+    highp float interp_pad1;
+    highp float interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -56,18 +57,19 @@ lowp float opacity = u_opacity;
     v_pos = (gl_Position.xy / gl_Position.w + 1.0) / 2.0 * u_world;
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform FillOutlineEvaluatedPropsUBO {
-    highp vec4 u_outline_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
-layout (std140) uniform FillOutlineInterpolateUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform FillOutlineInterpolateUBO {
     highp float u_outline_color_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
-    highp float u_padding_interp2;
+    highp float interp_pad1;
+    highp float interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 in vec2 v_pos;

include/mbgl/shaders/gl/drawable_fill_outline_pattern.hpp

@@ -16,21 +16,23 @@ struct ShaderSource<BuiltIn::FillOutlinePatternShader, gfx::Backend::Type::OpenG
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
 };
-layout (std140) uniform FillOutlinePatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillOutlinePatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillOutlinePatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float pad1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillOutlinePatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -98,21 +100,23 @@ mediump vec4 pattern_to = u_pattern_to;
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
 };
-layout (std140) uniform FillOutlinePatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillOutlinePatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillOutlinePatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float pad1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillOutlinePatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_fill_outline_triangulated.hpp

@@ -23,14 +23,15 @@ layout (std140) uniform FillOutlineTriangulatedDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_units_to_pixels;
     mediump float u_ratio;
-    lowp float pad0;
+    lowp float drawable_pad1;
 };
-
-layout (std140) uniform FillOutlineTriangulatedPropertiesUBO {
+layout (std140) uniform FillEvaluatedPropsUBO {
     highp vec4 u_color;
-    lowp float u_opacity;
-    mediump float u_width;
-    highp vec2 pad1;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 out vec2 v_normal;
@@ -76,11 +77,13 @@ void main() {
     v_width = outset;
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform FillOutlineTriangulatedPropertiesUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform FillEvaluatedPropsUBO {
     highp vec4 u_color;
-    lowp float u_opacity;
-    mediump float u_width;
-    highp vec2 pad1;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 in float v_width;
@@ -97,7 +100,7 @@ void main() {
     float blur2 = (1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;
     float alpha = clamp(min(dist + blur2, v_width - dist) / blur2, 0.0, 1.0);
 
-    fragColor = u_color * (alpha * u_opacity);
+    fragColor = u_outline_color * (alpha * u_opacity);
 
 #ifdef OVERDRAW_INSPECTOR
     fragColor = vec4(1.0);

include/mbgl/shaders/gl/drawable_fill_pattern.hpp

@@ -14,24 +14,26 @@ struct ShaderSource<BuiltIn::FillPatternShader, gfx::Backend::Type::OpenGL> {
     highp vec2 u_pixel_coord_upper;
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
-    highp float pad1;
-    highp float pad2;
+    highp float drawable_pad1;
+    highp float drawable_pad2;
 };
-layout (std140) uniform FillPatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillPatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillPatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillPatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -93,24 +95,26 @@ mediump vec4 pattern_to = u_pattern_to;
     highp vec2 u_pixel_coord_upper;
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
-    highp float pad1;
-    highp float pad2;
+    highp float drawable_pad1;
+    highp float drawable_pad2;
 };
-layout (std140) uniform FillPatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillPatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillPatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillPatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_heatmap.hpp

@@ -14,21 +14,21 @@ out vec2 v_extrude;
 layout (std140) uniform HeatmapDrawableUBO {
     highp mat4 u_matrix;
     highp float u_extrude_scale;
-    lowp float pad1_;
-    lowp vec2 pad2_;
+    lowp float drawable_pad1;
+    lowp vec2 drawable_pad2;
 };
 
 layout (std140) uniform HeatmapEvaluatedPropsUBO {
     highp float u_weight;
     highp float u_radius;
     highp float u_intensity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 layout (std140) uniform HeatmapInterpolateUBO {
     lowp float u_weight_t;
     lowp float u_radius_t;
-    lowp vec2 pad3_;
+    lowp vec2 interp_pad1;
 };
 
 #ifndef HAS_UNIFORM_u_weight
@@ -95,7 +95,7 @@ layout (std140) uniform HeatmapEvaluatedPropsUBO {
     highp float u_weight;
     highp float u_radius;
     highp float u_intensity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 #ifndef HAS_UNIFORM_u_weight

include/mbgl/shaders/gl/drawable_heatmap_texture.hpp

@@ -11,11 +11,11 @@ struct ShaderSource<BuiltIn::HeatmapTextureShader, gfx::Backend::Type::OpenGL> {
     static constexpr const char* vertex = R"(layout (location = 0) in vec2 a_pos;
 out vec2 v_pos;
 
-layout (std140) uniform HeatmapTextureDrawableUBO {
+layout (std140) uniform HeatmapTexturePropsUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
     highp float u_opacity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 void main() {
@@ -29,11 +29,11 @@ void main() {
 uniform sampler2D u_image;
 uniform sampler2D u_color_ramp;
 
-layout (std140) uniform HeatmapTextureDrawableUBO {
+layout (std140) uniform HeatmapTexturePropsUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
     highp float u_opacity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 void main() {

include/mbgl/shaders/gl/drawable_line.hpp

@@ -21,25 +21,13 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineUBO {
+layout (std140) uniform LineDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LinePropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineInterpolationUBO {
@@ -49,8 +37,19 @@ layout (std140) uniform LineInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp vec2 interp_pad1;
+};
 
-    highp vec2 pad7;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;
@@ -162,22 +161,10 @@ mediump float width = u_width;
     v_width2 = vec2(outset, inset);
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform LineUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform LineDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LinePropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineInterpolationUBO {
@@ -187,8 +174,19 @@ layout (std140) uniform LineInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp vec2 interp_pad1;
+};
 
-    highp vec2 pad7;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 in vec2 v_width2;

include/mbgl/shaders/gl/drawable_line_gradient.hpp

@@ -25,24 +25,13 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineGradientUBO {
+layout (std140) uniform LineGradientDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineGradientPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineGradientInterpolationUBO {
@@ -51,9 +40,20 @@ layout (std140) uniform LineGradientInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp float interp_pad1;
+    highp vec2 interp_pad2;
+};
 
-    highp float pad7;
-    highp vec2 pad8;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;
@@ -156,21 +156,10 @@ mediump float width = u_width;
     v_width2 = vec2(outset, inset);
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform LineGradientUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform LineGradientDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineGradientPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineGradientInterpolationUBO {
@@ -179,9 +168,20 @@ layout (std140) uniform LineGradientInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp float interp_pad1;
+    highp vec2 interp_pad2;
+};
 
-    highp float pad7;
-    highp vec2 pad8;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_line_pattern.hpp

@@ -25,10 +25,10 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LinePatternUBO {
+layout (std140) uniform LinePatternDrawableUBO {
     highp mat4 u_matrix;
     mediump vec4 u_scale;
     highp vec2 u_texsize;
@@ -36,22 +36,6 @@ layout (std140) uniform LinePatternUBO {
     highp float u_fade;
 };
 
-layout (std140) uniform LinePatternPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    lowp float u_offset;
-    mediump float u_gapwidth;
-    mediump float u_width;
-
-    highp float pad2;
-    highp vec2 pad3;
-};
-
-layout (std140) uniform LinePatternTilePropertiesUBO {
-    lowp vec4 u_pattern_from;
-    lowp vec4 u_pattern_to;
-};
-
 layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_blur_t;
     lowp float u_opacity_t;
@@ -60,8 +44,24 @@ layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_width_t;
     lowp float u_pattern_from_t;
     lowp float u_pattern_to_t;
+    highp float interp_pad1;
+};
 
-    highp float pad4;
+layout (std140) uniform LinePatternTilePropertiesUBO {
+    lowp vec4 u_pattern_from;
+    lowp vec4 u_pattern_to;
+};
+
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;
@@ -182,7 +182,7 @@ mediump vec4 pattern_to = u_pattern_to;
     v_width2 = vec2(outset, inset);
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform LinePatternUBO {
+    static constexpr const char* fragment = R"(layout (std140) uniform LinePatternDrawableUBO {
     highp mat4 u_matrix;
     mediump vec4 u_scale;
     highp vec2 u_texsize;
@@ -190,22 +190,6 @@ mediump vec4 pattern_to = u_pattern_to;
     highp float u_fade;
 };
 
-layout (std140) uniform LinePatternPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    lowp float u_offset;
-    mediump float u_gapwidth;
-    mediump float u_width;
-
-    highp float pad2;
-    highp vec2 pad3;
-};
-
-layout (std140) uniform LinePatternTilePropertiesUBO {
-    lowp vec4 u_pattern_from;
-    lowp vec4 u_pattern_to;
-};
-
 layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_blur_t;
     lowp float u_opacity_t;
@@ -214,8 +198,24 @@ layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_width_t;
     lowp float u_pattern_from_t;
     lowp float u_pattern_to_t;
+    highp float interp_pad1;
+};
 
-    highp float pad4;
+layout (std140) uniform LinePatternTilePropertiesUBO {
+    lowp vec4 u_pattern_from;
+    lowp vec4 u_pattern_to;
+};
+
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_line_sdf.hpp

@@ -25,10 +25,10 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineSDFUBO {
+layout (std140) uniform LineSDFDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_patternscale_a;
     highp vec2 u_patternscale_b;
@@ -37,19 +37,7 @@ layout (std140) uniform LineSDFUBO {
     highp float u_tex_y_b;
     highp float u_sdfgamma;
     highp float u_mix;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineSDFPropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-    lowp float u_floorwidth;
-
-    highp vec2 pad5;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineSDFInterpolationUBO {
@@ -60,8 +48,19 @@ layout (std140) uniform LineSDFInterpolationUBO {
     lowp float u_offset_t;
     lowp float u_width_t;
     lowp float u_floorwidth_t;
+    highp float interp_pad1;
+};
 
-    highp float pad6;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;
@@ -187,7 +186,7 @@ lowp float floorwidth = u_floorwidth;
 }
 )";
     static constexpr const char* fragment = R"(
-layout (std140) uniform LineSDFUBO {
+layout (std140) uniform LineSDFDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_patternscale_a;
     highp vec2 u_patternscale_b;
@@ -196,20 +195,7 @@ layout (std140) uniform LineSDFUBO {
     highp float u_tex_y_b;
     highp float u_sdfgamma;
     highp float u_mix;
-    
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineSDFPropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-    lowp float u_floorwidth;
-
-    highp vec2 pad5;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineSDFInterpolationUBO {
@@ -220,8 +206,19 @@ layout (std140) uniform LineSDFInterpolationUBO {
     lowp float u_offset_t;
     lowp float u_width_t;
     lowp float u_floorwidth_t;
+    highp float interp_pad1;
+};
 
-    highp float pad6;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

include/mbgl/shaders/gl/drawable_raster.hpp

@@ -10,6 +10,8 @@ struct ShaderSource<BuiltIn::RasterShader, gfx::Backend::Type::OpenGL> {
     static constexpr const char* name = "RasterShader";
     static constexpr const char* vertex = R"(layout (std140) uniform RasterDrawableUBO {
     highp mat4 u_matrix;
+};
+layout (std140) uniform RasterEvaluatedPropsUBO {
     highp vec3 u_spin_weights;
     highp vec2 u_tl_parent;
     highp float u_scale_parent;
@@ -20,8 +22,8 @@ struct ShaderSource<BuiltIn::RasterShader, gfx::Backend::Type::OpenGL> {
     highp float u_brightness_high;
     highp float u_saturation_factor;
     highp float u_contrast_factor;
-    highp float pad1;
-    highp float pad2;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 layout (location = 0) in vec2 a_pos;
@@ -41,8 +43,7 @@ void main() {
     v_pos1 = (v_pos0 * u_scale_parent) + u_tl_parent;
 }
 )";
-    static constexpr const char* fragment = R"(layout (std140) uniform RasterDrawableUBO {
-    highp mat4 u_matrix;
+    static constexpr const char* fragment = R"(layout (std140) uniform RasterEvaluatedPropsUBO {
     highp vec3 u_spin_weights;
     highp vec2 u_tl_parent;
     highp float u_scale_parent;
@@ -53,8 +54,8 @@ void main() {
     highp float u_brightness_high;
     highp float u_saturation_factor;
     highp float u_contrast_factor;
-    highp float pad1;
-    highp float pad2;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 uniform sampler2D u_image0;
 uniform sampler2D u_image1;

include/mbgl/shaders/gl/drawable_symbol_icon.hpp

@@ -14,6 +14,13 @@ layout (location = 2) in vec4 a_pixeloffset;
 layout (location = 3) in vec3 a_projected_pos;
 layout (location = 4) in float a_fade_opacity;
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -24,26 +31,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -51,16 +42,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec2 v_tex;
@@ -72,6 +78,8 @@ out lowp float opacity;
 #endif
 
 void main() {
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+
     #ifndef HAS_UNIFORM_u_opacity
 opacity = unpack_mix_vec2(a_opacity, u_opacity_t);
 #else
@@ -140,22 +148,39 @@ lowp float opacity = u_opacity;
 )";
     static constexpr const char* fragment = R"(uniform sampler2D u_texture;
 
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2,interp_pad3;
+};
+
+layout (std140) uniform SymbolTilePropsUBO {
+    bool u_is_text;
+    bool u_is_halo;
+    bool u_pitch_with_map;
+    bool u_is_size_zoom_constant;
+    bool u_is_size_feature_constant;
+    highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
+    highp float u_size; // used when size is both zoom and feature constant
+    bool tileprops_pad1;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 in vec2 v_tex;
@@ -166,6 +191,8 @@ in lowp float opacity;
 #endif
 
 void main() {
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+
     #ifdef HAS_UNIFORM_u_opacity
 lowp float opacity = u_opacity;
 #endif

include/mbgl/shaders/gl/drawable_symbol_sdf.hpp

@@ -22,6 +22,13 @@ layout (location = 4) in float a_fade_opacity;
 // [ text-size(lowerZoomStop, feature),
 //   text-size(upperZoomStop, feature) ]
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -32,26 +39,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -59,16 +50,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec2 v_data0;
@@ -96,6 +102,12 @@ out lowp float halo_blur;
 #endif
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #ifndef HAS_UNIFORM_u_fill_color
 fill_color = unpack_mix_color(a_fill_color, u_fill_color_t);
 #else
@@ -193,6 +205,13 @@ lowp float halo_blur = u_halo_blur;
 )";
     static constexpr const char* fragment = R"(#define SDF_PX 8.0
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -203,26 +222,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -230,16 +233,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_texture;
@@ -264,6 +282,12 @@ in lowp float halo_blur;
 #endif
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #ifdef HAS_UNIFORM_u_fill_color
 highp vec4 fill_color = u_fill_color;
 #endif

include/mbgl/shaders/gl/drawable_symbol_text_and_icon.hpp

@@ -21,6 +21,13 @@ layout (location = 3) in float a_fade_opacity;
 // [ text-size(lowerZoomStop, feature),
 //   text-size(upperZoomStop, feature) ]
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -31,26 +38,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -58,16 +49,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec4 v_data0;
@@ -95,6 +101,12 @@ out lowp float halo_blur;
 #endif
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #ifndef HAS_UNIFORM_u_fill_color
 fill_color = unpack_mix_color(a_fill_color, u_fill_color_t);
 #else
@@ -196,6 +208,13 @@ lowp float halo_blur = u_halo_blur;
 #define SDF 1.0
 #define ICON 0.0
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -206,26 +225,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -233,16 +236,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2,interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_texture;
@@ -268,6 +286,12 @@ in lowp float halo_blur;
 #endif
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #ifdef HAS_UNIFORM_u_fill_color
 highp vec4 fill_color = u_fill_color;
 #endif

include/mbgl/shaders/gl/shader_info.hpp

@@ -8,12 +8,6 @@
 namespace mbgl {
 namespace shaders {
 
-struct AttributeInfo {
-    AttributeInfo(std::string_view name, std::size_t id);
-    std::string_view name;
-    std::size_t id;
-};
-
 struct UniformBlockInfo {
     UniformBlockInfo(std::string_view name, std::size_t id);
     std::string_view name;
@@ -21,6 +15,12 @@ struct UniformBlockInfo {
     std::size_t binding;
 };
 
+struct AttributeInfo {
+    AttributeInfo(std::string_view name, std::size_t id);
+    std::string_view name;
+    std::size_t id;
+};
+
 struct TextureInfo {
     TextureInfo(std::string_view name, std::size_t id);
     std::string_view name;

include/mbgl/shaders/heatmap_texture_layer_ubo.hpp

@@ -5,16 +5,16 @@
 namespace mbgl {
 namespace shaders {
 
-struct alignas(16) HeatmapTextureDrawableUBO {
+struct alignas(16) HeatmapTexturePropsUBO {
     std::array<float, 4 * 4> matrix;
     std::array<float, 2> world;
     float opacity;
     float pad1;
 };
-static_assert(sizeof(HeatmapTextureDrawableUBO) % 16 == 0);
+static_assert(sizeof(HeatmapTexturePropsUBO) % 16 == 0);
 
 enum {
-    idHeatmapTextureDrawableUBO,
+    idHeatmapTexturePropsUBO,
     heatmapTextureUBOCount
 };
 

include/mbgl/shaders/line_layer_ubo.hpp

@@ -15,23 +15,12 @@ struct alignas(16) LineDynamicUBO {
 };
 static_assert(sizeof(LineDynamicUBO) == 16);
 
-struct alignas(16) LineUBO {
+struct alignas(16) LineDrawableUBO {
     std::array<float, 4 * 4> matrix;
     float ratio;
     float pad1, pad2, pad3;
 };
-static_assert(sizeof(LineUBO) % 16 == 0);
-
-struct alignas(16) LinePropertiesUBO {
-    Color color;
-    float blur;
-    float opacity;
-    float gapwidth;
-    float offset;
-    float width;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(LinePropertiesUBO) % 16 == 0);
+static_assert(sizeof(LineDrawableUBO) % 16 == 0);
 
 struct alignas(16) LineInterpolationUBO {
     float color_t;
@@ -44,28 +33,10 @@ struct alignas(16) LineInterpolationUBO {
 };
 static_assert(sizeof(LineInterpolationUBO) % 16 == 0);
 
-enum {
-    idLineDynamicUBO,
-    idLineUBO,
-    idLinePropertiesUBO,
-    idLineInterpolationUBO,
-    lineUBOCount
-};
-
 //
 // Line gradient
 
-using LineGradientUBO = LineUBO;
-
-struct alignas(16) LineGradientPropertiesUBO {
-    float blur;
-    float opacity;
-    float gapwidth;
-    float offset;
-    float width;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(LineGradientPropertiesUBO) % 16 == 0);
+using LineGradientDrawableUBO = LineDrawableUBO;
 
 struct alignas(16) LineGradientInterpolationUBO {
     float blur_t;
@@ -77,35 +48,17 @@ struct alignas(16) LineGradientInterpolationUBO {
 };
 static_assert(sizeof(LineGradientInterpolationUBO) % 16 == 0);
 
-enum {
-    idLineGradientDynamicUBO,
-    idLineGradientUBO,
-    idLineGradientPropertiesUBO,
-    idLineGradientInterpolationUBO,
-    lineGradientUBOCount
-};
-
 //
 // Line pattern
 
-struct alignas(16) LinePatternUBO {
+struct alignas(16) LinePatternDrawableUBO {
     std::array<float, 4 * 4> matrix;
     std::array<float, 4> scale;
     std::array<float, 2> texsize;
     float ratio;
     float fade;
 };
-static_assert(sizeof(LinePatternUBO) % 16 == 0);
-
-struct alignas(16) LinePatternPropertiesUBO {
-    float blur;
-    float opacity;
-    float offset;
-    float gapwidth;
-    float width;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(LinePatternPropertiesUBO) % 16 == 0);
+static_assert(sizeof(LinePatternDrawableUBO) % 16 == 0);
 
 struct alignas(16) LinePatternInterpolationUBO {
     float blur_t;
@@ -125,19 +78,10 @@ struct alignas(16) LinePatternTilePropertiesUBO {
 };
 static_assert(sizeof(LinePatternTilePropertiesUBO) % 16 == 0);
 
-enum {
-    idLinePatternDynamicUBO,
-    idLinePatternUBO,
-    idLinePatternPropertiesUBO,
-    idLinePatternInterpolationUBO,
-    idLinePatternTilePropertiesUBO,
-    linePatternUBOCount
-};
-
 //
 // Line SDF
 
-struct alignas(16) LineSDFUBO {
+struct alignas(16) LineSDFDrawableUBO {
     std::array<float, 4 * 4> matrix;
     std::array<float, 2> patternscale_a;
     std::array<float, 2> patternscale_b;
@@ -148,19 +92,7 @@ struct alignas(16) LineSDFUBO {
     float mix;
     float pad1, pad2, pad3;
 };
-static_assert(sizeof(LineSDFUBO) % 16 == 0);
-
-struct alignas(16) LineSDFPropertiesUBO {
-    Color color;
-    float blur;
-    float opacity;
-    float gapwidth;
-    float offset;
-    float width;
-    float floorwidth;
-    float pad1, pad2;
-};
-static_assert(sizeof(LineSDFPropertiesUBO) % 16 == 0);
+static_assert(sizeof(LineSDFDrawableUBO) % 16 == 0);
 
 struct alignas(16) LineSDFInterpolationUBO {
     float color_t;
@@ -174,12 +106,28 @@ struct alignas(16) LineSDFInterpolationUBO {
 };
 static_assert(sizeof(LineSDFInterpolationUBO) % 16 == 0);
 
+//
+// Line evaluated properties
+
+struct alignas(16) LineEvaluatedPropsUBO {
+    Color color;
+    float blur;
+    float opacity;
+    float gapwidth;
+    float offset;
+    float width;
+    float floorwidth;
+    float pad1, pad2;
+};
+static_assert(sizeof(LineEvaluatedPropsUBO) % 16 == 0);
+
 enum {
-    idLineSDFDynamicUBO,
-    idLineSDFUBO,
-    idLineSDFPropertiesUBO,
-    idLineSDFInterpolationUBO,
-    lineSDFUBOCount
+    idLineDynamicUBO,
+    idLineDrawableUBO,
+    idLineInterpolationUBO,
+    idLineTilePropertiesUBO,
+    idLineEvaluatedPropsUBO,
+    lineUBOCount
 };
 
 } // namespace shaders

include/mbgl/shaders/mtl/background.hpp

@@ -14,9 +14,9 @@ struct ShaderSource<BuiltIn::BackgroundShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 1> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
@@ -24,7 +24,7 @@ struct ShaderSource<BuiltIn::BackgroundShader, gfx::Backend::Type::Metal> {
 using namespace metal;
 
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(2)]];
 };
 
 struct FragmentStage {
@@ -37,20 +37,18 @@ struct alignas(16) BackgroundDrawableUBO {
 struct alignas(16) BackgroundLayerUBO {
     float4 color;
     float opacity;
-    bool overdrawInspector;
-    uint8_t pad1, pad2, pad3;
-    float pad4, pad5;
+    float pad1, pad2, pad3;
 };
 
 FragmentStage vertex vertexMain(VertexStage in [[stage_in]],
-                                device const BackgroundDrawableUBO& drawableUBO [[buffer(1)]]) {
+                                device const BackgroundDrawableUBO& drawableUBO [[buffer(0)]]) {
     return {
         .position = drawableUBO.matrix * float4(float2(in.position.xy), 0, 1)
     };
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const BackgroundLayerUBO& layerUBO [[buffer(2)]]) {
+                            device const BackgroundLayerUBO& layerUBO [[buffer(1)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif

include/mbgl/shaders/mtl/background_pattern.hpp

@@ -11,9 +11,9 @@ struct ShaderSource<BuiltIn::BackgroundPatternShader, gfx::Backend::Type::Metal>
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 1> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
@@ -21,7 +21,7 @@ struct ShaderSource<BuiltIn::BackgroundPatternShader, gfx::Backend::Type::Metal>
 using namespace metal;
 
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(2)]];
 };
 
 struct FragmentStage {
@@ -30,10 +30,14 @@ struct FragmentStage {
     float2 pos_b;
 };
 
-struct alignas(16) BackgroundDrawableUBO {
+struct alignas(16) BackgroundPatternDrawableUBO {
     float4x4 matrix;
+    float2 pixel_coord_upper;
+    float2 pixel_coord_lower;
+    float tile_units_to_pixels;
+    float pad1, pad2, pad3;
 };
-struct alignas(16) BackgroundLayerUBO {
+struct alignas(16) BackgroundPatternLayerUBO {
     float2 pattern_tl_a;
     float2 pattern_br_a;
     float2 pattern_tl_b;
@@ -41,30 +45,26 @@ struct alignas(16) BackgroundLayerUBO {
     float2 texsize;
     float2 pattern_size_a;
     float2 pattern_size_b;
-    float2 pixel_coord_upper;
-    float2 pixel_coord_lower;
-    float tile_units_to_pixels;
     float scale_a;
     float scale_b;
     float mix;
     float opacity;
-    bool overdrawInspector;
-    uint8_t pad1, pad2, pad3;
+    float pad1, pad2;
 };
 
 FragmentStage vertex vertexMain(VertexStage in [[stage_in]],
-                                device const BackgroundDrawableUBO& drawableUBO [[buffer(1)]],
-                                device const BackgroundLayerUBO& layerUBO [[buffer(2)]]) {
+                                device const BackgroundPatternDrawableUBO& drawableUBO [[buffer(0)]],
+                                device const BackgroundPatternLayerUBO& layerUBO [[buffer(1)]]) {
     const float2 pos = float2(in.position);
-    const float2 pos_a = get_pattern_pos(layerUBO.pixel_coord_upper,
-                                         layerUBO.pixel_coord_lower,
+    const float2 pos_a = get_pattern_pos(drawableUBO.pixel_coord_upper,
+                                         drawableUBO.pixel_coord_lower,
                                          layerUBO.scale_a * layerUBO.pattern_size_a,
-                                         layerUBO.tile_units_to_pixels,
+                                         drawableUBO.tile_units_to_pixels,
                                          pos);
-    const float2 pos_b = get_pattern_pos(layerUBO.pixel_coord_upper,
-                                         layerUBO.pixel_coord_lower,
+    const float2 pos_b = get_pattern_pos(drawableUBO.pixel_coord_upper,
+                                         drawableUBO.pixel_coord_lower,
                                          layerUBO.scale_b * layerUBO.pattern_size_b,
-                                         layerUBO.tile_units_to_pixels,
+                                         drawableUBO.tile_units_to_pixels,
                                          pos);
     return {
         .position = drawableUBO.matrix * float4(float2(in.position.xy), 0, 1),
@@ -74,7 +74,7 @@ FragmentStage vertex vertexMain(VertexStage in [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const BackgroundLayerUBO& layerUBO [[buffer(2)]],
+                            device const BackgroundPatternLayerUBO& layerUBO [[buffer(1)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             sampler image_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)

include/mbgl/shaders/mtl/circle.hpp

@@ -14,35 +14,35 @@ struct ShaderSource<BuiltIn::CircleShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 8> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(4)]];
 
 #if !defined(HAS_UNIFORM_u_color)
-    float4 color [[attribute(1)]];
+    float4 color [[attribute(5)]];
 #endif
 #if !defined(HAS_UNIFORM_u_radius)
-    float2 radius [[attribute(2)]];
+    float2 radius [[attribute(6)]];
 #endif
 #if !defined(HAS_UNIFORM_u_blur)
-    float2 blur [[attribute(3)]];
+    float2 blur [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(4)]];
+    float2 opacity [[attribute(8)]];
 #endif
 #if !defined(HAS_UNIFORM_u_stroke_color)
-    float4 stroke_color [[attribute(5)]];
+    float4 stroke_color [[attribute(9)]];
 #endif
 #if !defined(HAS_UNIFORM_u_stroke_width)
-    float2 stroke_width [[attribute(6)]];
+    float2 stroke_width [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_stroke_opacity)
-    float2 stroke_opacity [[attribute(7)]];
+    float2 stroke_opacity [[attribute(11)]];
 #endif
 };
 
@@ -108,10 +108,10 @@ struct alignas(16) CircleInterpolateUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const CircleDrawableUBO& drawable [[buffer(8)]],
-                                device const CirclePaintParamsUBO& params [[buffer(9)]],
-                                device const CircleEvaluatedPropsUBO& props [[buffer(10)]],
-                                device const CircleInterpolateUBO& interp [[buffer(11)]]) {
+                                device const CircleDrawableUBO& drawable [[buffer(0)]],
+                                device const CirclePaintParamsUBO& params [[buffer(1)]],
+                                device const CircleEvaluatedPropsUBO& props [[buffer(2)]],
+                                device const CircleInterpolateUBO& interp [[buffer(3)]]) {
 
 #if defined(HAS_UNIFORM_u_radius)
     const auto radius       = props.radius;
@@ -189,8 +189,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const CirclePaintParamsUBO& params [[buffer(9)]],
-                            device const CircleEvaluatedPropsUBO& props [[buffer(10)]]) {
+                            device const CirclePaintParamsUBO& params [[buffer(1)]],
+                            device const CircleEvaluatedPropsUBO& props [[buffer(2)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif

include/mbgl/shaders/mtl/clipping_mask.hpp

@@ -20,9 +20,9 @@ struct ShaderSource<BuiltIn::ClippingMaskProgram, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 1> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
@@ -38,7 +38,7 @@ struct alignas(16) ClipUBO {
 static_assert(sizeof(ClipUBO) == 5 * 16, "unexpected padding");
 
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(1)]];
 };
 
 struct FragmentStage {
@@ -51,7 +51,7 @@ struct FragmentResult {
 };
 
 FragmentStage vertex vertexMain(VertexStage in [[stage_in]],
-                                device const ClipUBO& clipUBO [[buffer(1)]]) {
+                                device const ClipUBO& clipUBO [[buffer(0)]]) {
     return { clipUBO.matrix * float4(float2(in.position.xy), 0, 1) };
 }
 

include/mbgl/shaders/mtl/collision_box.hpp

@@ -14,19 +14,19 @@ struct ShaderSource<BuiltIn::CollisionBoxShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 5> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short2 anchor_pos [[attribute(1)]];
-    short2 extrude [[attribute(2)]];
-    ushort2 placed [[attribute(3)]];
-    float2 shift [[attribute(4)]];
+    short2 pos [[attribute(1)]];
+    short2 anchor_pos [[attribute(2)]];
+    short2 extrude [[attribute(3)]];
+    ushort2 placed [[attribute(4)]];
+    float2 shift [[attribute(5)]];
 };
 
 struct FragmentStage {
@@ -43,7 +43,7 @@ struct alignas(16) CollisionBoxUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const CollisionBoxUBO& drawable [[buffer(5)]]) {
+                                device const CollisionBoxUBO& drawable [[buffer(0)]]) {
 
     float4 projectedPoint = drawable.matrix * float4(float2(vertx.anchor_pos), 0, 1);
     float camera_to_anchor_distance = projectedPoint.w;
@@ -66,7 +66,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const CollisionBoxUBO& drawable [[buffer(5)]]) {
+                            device const CollisionBoxUBO& drawable [[buffer(0)]]) {
 
     float alpha = 0.5;
 

include/mbgl/shaders/mtl/collision_circle.hpp

@@ -14,18 +14,18 @@ struct ShaderSource<BuiltIn::CollisionCircleShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 4> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short2 anchor_pos [[attribute(1)]];
-    short2 extrude [[attribute(2)]];
-    ushort2 placed [[attribute(3)]];
+    short2 pos [[attribute(1)]];
+    short2 anchor_pos [[attribute(2)]];
+    short2 extrude [[attribute(3)]];
+    ushort2 placed [[attribute(4)]];
 };
 
 struct FragmentStage {
@@ -45,7 +45,7 @@ struct alignas(16) CollisionCircleUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const CollisionCircleUBO& drawable [[buffer(4)]]) {
+                                device const CollisionCircleUBO& drawable [[buffer(0)]]) {
 
     float4 projectedPoint = drawable.matrix * float4(float2(vertx.anchor_pos), 0, 1);
     float camera_to_anchor_distance = projectedPoint.w;
@@ -77,7 +77,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const CollisionCircleUBO& drawable [[buffer(4)]]) {
+                            device const CollisionCircleUBO& drawable [[buffer(0)]]) {
 
     float alpha = 0.5;
 

include/mbgl/shaders/mtl/common.hpp

@@ -54,82 +54,82 @@ float4 unpack_mix_color(const float4 packedColors, const float t) {
                decode_color(float2(packedColors[2], packedColors[3])), t);
 }
 
+struct alignas(16) FillEvaluatedPropsUBO {
+    float4 color;
+    float4 outline_color;
+    float opacity;
+    float fade;
+    float width;
+    float pad1;
+};
+
+struct alignas(16) FillExtrusionDrawableUBO {
+    /*   0 */ float4x4 matrix;
+    /*  64 */ float4 scale;
+    /*  80 */ float2 texsize;
+    /*  88 */ float2 pixel_coord_upper;
+    /*  96 */ float2 pixel_coord_lower;
+    /* 104 */ float height_factor;
+    /* 108 */ float pad;
+    /* 112 */
+};
+static_assert(sizeof(FillExtrusionDrawableUBO) == 7 * 16, "unexpected padding");
+
+struct alignas(16) FillExtrusionPropsUBO {
+    /*  0 */ float4 color;
+    /* 16 */ float4 light_color_pad;
+    /* 32 */ float4 light_position_base;
+    /* 48 */ float height;
+    /* 52 */ float light_intensity;
+    /* 56 */ float vertical_gradient;
+    /* 60 */ float opacity;
+    /* 64 */ float fade;
+    /* 68 */ float pad2, pad3, pad4;
+    /* 80 */
+};
+static_assert(sizeof(FillExtrusionPropsUBO) == 5 * 16, "unexpected padding");
+
+struct alignas(16) FillExtrusionTilePropsUBO {
+    /*  0 */ float4 pattern_from;
+    /* 16 */ float4 pattern_to;
+    /* 32 */
+};
+static_assert(sizeof(FillExtrusionTilePropsUBO) == 2 * 16, "unexpected padding");
+
+struct alignas(16) FillExtrusionInterpolateUBO {
+    /*  0 */ float base_t;
+    /*  4 */ float height_t;
+    /*  8 */ float color_t;
+    /* 12 */ float pattern_from_t;
+    /* 16 */ float pattern_to_t;
+    /* 20 */ float pad1, pad2, pad3;
+    /* 32 */
+};
+static_assert(sizeof(FillExtrusionInterpolateUBO) == 2 * 16, "unexpected padding");
+
 struct alignas(16) LineDynamicUBO {
     float2 units_to_pixels;
     float pad1, pad2;
 };
 
-struct alignas(16) LineUBO {
-    float4x4 matrix;
-    float ratio;
-    float pad1, pad2, pad3;
-};
-
-struct alignas(16) LineGradientUBO {
-    float4x4 matrix;
-    float ratio;
-    float pad1, pad2, pad3;
-};
-
-struct alignas(16) LinePropertiesUBO {
+struct alignas(16) LineEvaluatedPropsUBO {
     float4 color;
     float blur;
     float opacity;
     float gapwidth;
     float offset;
     float width;
-    float pad1, pad2, pad3;
-};
-
-struct alignas(16) LineGradientPropertiesUBO {
-    float blur;
-    float opacity;
-    float gapwidth;
-    float offset;
-    float width;
-    float pad1, pad2, pad3;
-};
-
-struct alignas(16) LineInterpolationUBO {
-    float color_t;
-    float blur_t;
-    float opacity_t;
-    float gapwidth_t;
-    float offset_t;
-    float width_t;
+    float floorwidth;
     float pad1, pad2;
 };
 
-struct alignas(16) LineGradientInterpolationUBO {
-    float blur_t;
-    float opacity_t;
-    float gapwidth_t;
-    float offset_t;
-    float width_t;
-    float pad1, pad2, pad3;
+struct alignas(16) SymbolDynamicUBO {
+    float fade_change;
+    float camera_to_center_distance;
+    float aspect_ratio;
+    float pad;
 };
-
-struct alignas(16) SymbolDrawableTilePropsUBO {
-    /*bool*/ int is_text;
-    /*bool*/ int is_halo;
-    /*bool*/ int pitch_with_map;
-    /*bool*/ int is_size_zoom_constant;
-    /*bool*/ int is_size_feature_constant;
-    float size_t;
-    float size;
-    float padding;
-};
-static_assert(sizeof(SymbolDrawableTilePropsUBO) == 2 * 16, "unexpected padding");
-
-struct alignas(16) SymbolDrawableInterpolateUBO {
-    float fill_color_t;
-    float halo_color_t;
-    float opacity_t;
-    float halo_width_t;
-    float halo_blur_t;
-    float pad1, pad2, pad3;
-};
-static_assert(sizeof(SymbolDrawableInterpolateUBO) == 32, "unexpected padding");
+static_assert(sizeof(SymbolDynamicUBO) == 16, "unexpected padding");
 
 struct alignas(16) SymbolDrawableUBO {
     float4x4 matrix;
@@ -145,23 +145,43 @@ struct alignas(16) SymbolDrawableUBO {
 };
 static_assert(sizeof(SymbolDrawableUBO) == 14 * 16, "unexpected padding");
 
-struct alignas(16) SymbolDynamicUBO {
-    float fade_change;
-    float camera_to_center_distance;
-    float aspect_ratio;
-    float pad;
-};
-static_assert(sizeof(SymbolDynamicUBO) == 16, "unexpected padding");
-
-struct alignas(16) SymbolDrawablePaintUBO {
-    float4 fill_color;
-    float4 halo_color;
-    float opacity;
-    float halo_width;
-    float halo_blur;
+struct alignas(16) SymbolTilePropsUBO {
+    /*bool*/ int is_text;
+    /*bool*/ int is_halo;
+    /*bool*/ int pitch_with_map;
+    /*bool*/ int is_size_zoom_constant;
+    /*bool*/ int is_size_feature_constant;
+    float size_t;
+    float size;
     float padding;
 };
-static_assert(sizeof(SymbolDrawablePaintUBO) == 3 * 16, "unexpected padding");
+static_assert(sizeof(SymbolTilePropsUBO) == 2 * 16, "unexpected padding");
+
+struct alignas(16) SymbolInterpolateUBO {
+    float fill_color_t;
+    float halo_color_t;
+    float opacity_t;
+    float halo_width_t;
+    float halo_blur_t;
+    float pad1, pad2, pad3;
+};
+static_assert(sizeof(SymbolInterpolateUBO) == 32, "unexpected padding");
+
+struct alignas(16) SymbolEvaluatedPropsUBO {
+    float4 text_fill_color;
+    float4 text_halo_color;
+    float text_opacity;
+    float text_halo_width;
+    float text_halo_blur;
+    float pad1;
+    float4 icon_fill_color;
+    float4 icon_halo_color;
+    float icon_opacity;
+    float icon_halo_width;
+    float icon_halo_blur;
+    float pad2;
+};
+static_assert(sizeof(SymbolEvaluatedPropsUBO) == 6 * 16, "unexpected padding");
 
 // unpack pattern position
 inline float2 get_pattern_pos(const float2 pixel_coord_upper, const float2 pixel_coord_lower,

include/mbgl/shaders/mtl/custom_symbol_icon.hpp

@@ -14,9 +14,9 @@ struct ShaderSource<BuiltIn::CustomSymbolIconShader, gfx::Backend::Type::Metal>
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 2> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
@@ -36,8 +36,8 @@ struct alignas(16) CustomSymbolIconParametersUBO {
 };
 
 struct VertexStage {
-    float2 a_pos [[attribute(0)]];
-    float2 a_tex [[attribute(1)]];
+    float2 a_pos [[attribute(2)]];
+    float2 a_tex [[attribute(3)]];
 };
 
 struct FragmentStage {
@@ -59,8 +59,8 @@ float2 ellipseRotateVec2(float2 v, float angle, float radiusRatio /* A/B */) {
 }
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const CustomSymbolIconDrawableUBO& drawable [[buffer(2)]],
-                                device const CustomSymbolIconParametersUBO& parameters [[buffer(3)]]) {
+                                device const CustomSymbolIconDrawableUBO& drawable [[buffer(0)]],
+                                device const CustomSymbolIconParametersUBO& parameters [[buffer(1)]]) {
 
     const float2 extrude = glMod(float2(vertx.a_pos), 2.0) * 2.0 - 1.0;
     const float2 anchor = (parameters.anchor - float2(0.5, 0.5)) * 2.0;

include/mbgl/shaders/mtl/debug.hpp

@@ -14,15 +14,15 @@ struct ShaderSource<BuiltIn::DebugShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 1> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
+    short2 pos [[attribute(1)]];
 };
 
 struct FragmentStage {
@@ -38,7 +38,7 @@ struct alignas(16) DebugUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const DebugUBO& debugUBO [[buffer(1)]]) {
+                                device const DebugUBO& debugUBO [[buffer(0)]]) {
 
     const float4 position = debugUBO.matrix * float4(float2(vertx.pos) * debugUBO.overlay_scale, 0, 1);
 
@@ -53,7 +53,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const DebugUBO& debugUBO [[buffer(1)]],
+                            device const DebugUBO& debugUBO [[buffer(0)]],
                             texture2d<float, access::sample> overlay [[texture(0)]],
                             sampler overlay_sampler [[sampler(0)]]) {
 

include/mbgl/shaders/mtl/fill.hpp

@@ -14,21 +14,21 @@ struct ShaderSource<BuiltIn::FillShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<AttributeInfo, 3> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(4)]];
 
 #if !defined(HAS_UNIFORM_u_color)
-    float4 color [[attribute(1)]];
+    float4 color [[attribute(5)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(2)]];
+    float2 opacity [[attribute(6)]];
 #endif
 };
 
@@ -47,20 +47,15 @@ struct alignas(16) FillDrawableUBO {
     float4x4 matrix;
 };
 
-struct alignas(16) FillEvaluatedPropsUBO {
-    float4 color;
-    float opacity;
-};
-
 struct alignas(16) FillInterpolateUBO {
     float color_t;
     float opacity_t;
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillDrawableUBO& drawable [[buffer(3)]],
-                                device const FillEvaluatedPropsUBO& props [[buffer(4)]],
-                                device const FillInterpolateUBO& interp [[buffer(5)]]) {
+                                device const FillDrawableUBO& drawable [[buffer(0)]],
+                                device const FillInterpolateUBO& interp [[buffer(2)]],
+                                device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
     return {
         .position = drawable.matrix * float4(float2(vertx.position), 0.0f, 1.0f),
 #if !defined(HAS_UNIFORM_u_color)
@@ -73,7 +68,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const FillEvaluatedPropsUBO& props [[buffer(4)]]) {
+                            device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif
@@ -101,16 +96,16 @@ struct ShaderSource<BuiltIn::FillOutlineShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<AttributeInfo, 3> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 position [[attribute(0)]];
-    float4 outline_color [[attribute(1)]];
-    float2 opacity [[attribute(2)]];
+    short2 position [[attribute(4)]];
+    float4 outline_color [[attribute(5)]];
+    float2 opacity [[attribute(6)]];
 };
 
 struct FragmentStage {
@@ -130,20 +125,15 @@ struct alignas(16) FillOutlineDrawableUBO {
     float2 pad1;
 };
 
-struct alignas(16) FillOutlineEvaluatedPropsUBO {
-    float4 outline_color;
-    float opacity;
-};
-
 struct alignas(16) FillOutlineInterpolateUBO {
     float outline_color_t;
     float opacity_t;
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillOutlineDrawableUBO& drawable [[buffer(3)]],
-                                device const FillOutlineEvaluatedPropsUBO& props [[buffer(4)]],
-                                device const FillOutlineInterpolateUBO& interp [[buffer(5)]]) {
+                                device const FillOutlineDrawableUBO& drawable [[buffer(0)]],
+                                device const FillOutlineInterpolateUBO& interp [[buffer(2)]],
+                                device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
     const float4 position = drawable.matrix * float4(float2(vertx.position), 0.0f, 1.0f);
     return {
         .position       = position,
@@ -158,7 +148,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const FillOutlineEvaluatedPropsUBO& props [[buffer(4)]]) {
+                            device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif
@@ -192,23 +182,23 @@ struct ShaderSource<BuiltIn::FillPatternShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 4> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(4)]];
 
 #if !defined(HAS_UNIFORM_u_pattern_from)
-    ushort4 pattern_from [[attribute(1)]];
+    ushort4 pattern_from [[attribute(5)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_to)
-    ushort4 pattern_to [[attribute(2)]];
+    ushort4 pattern_to [[attribute(6)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(3)]];
+    float2 opacity [[attribute(7)]];
 #endif
 };
 
@@ -236,11 +226,6 @@ struct alignas(16) FillPatternDrawableUBO {
     float2 texsize;
 };
 
-struct alignas(16) FillPatternEvaluatedPropsUBO {
-    float opacity;
-    float fade;
-};
-
 struct alignas(16) FillPatternTilePropsUBO {
     float4 pattern_from;
     float4 pattern_to;
@@ -253,10 +238,10 @@ struct alignas(16) FillPatternInterpolateUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillPatternDrawableUBO& drawable [[buffer(4)]],
-                                device const FillPatternTilePropsUBO& tileProps [[buffer(5)]],
-                                device const FillPatternEvaluatedPropsUBO& props [[buffer(6)]],
-                                device const FillPatternInterpolateUBO& interp [[buffer(7)]]) {
+                                device const FillPatternDrawableUBO& drawable [[buffer(0)]],
+                                device const FillPatternTilePropsUBO& tileProps [[buffer(1)]],
+                                device const FillPatternInterpolateUBO& interp [[buffer(2)]],
+                                device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 #if defined(HAS_UNIFORM_u_pattern_from)
     const auto pattern_from = float4(tileProps.pattern_from);
 #else
@@ -300,9 +285,9 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const FillPatternDrawableUBO& drawable [[buffer(4)]],
-                            device const FillPatternTilePropsUBO& tileProps [[buffer(5)]],
-                            device const FillPatternEvaluatedPropsUBO& props [[buffer(6)]],
+                            device const FillPatternDrawableUBO& drawable [[buffer(0)]],
+                            device const FillPatternTilePropsUBO& tileProps [[buffer(1)]],
+                            device const FillEvaluatedPropsUBO& props [[buffer(3)]],
                             texture2d<float, access::sample> image0 [[texture(0)]],
                             sampler image0_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -351,24 +336,24 @@ struct ShaderSource<BuiltIn::FillOutlinePatternShader, gfx::Backend::Type::Metal
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 4> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 position [[attribute(0)]];
+    short2 position [[attribute(4)]];
 
 #if !defined(HAS_UNIFORM_u_pattern_from)
-    ushort4 pattern_from [[attribute(1)]];
+    ushort4 pattern_from [[attribute(5)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_to)
-    ushort4 pattern_to [[attribute(2)]];
+    ushort4 pattern_to [[attribute(6)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(3)]];
+    float2 opacity [[attribute(7)]];
 #endif
 };
 
@@ -398,11 +383,6 @@ struct alignas(16) FillOutlinePatternDrawableUBO {
     float2 texsize;
 };
 
-struct alignas(16) FillOutlinePatternEvaluatedPropsUBO {
-    float opacity;
-    float fade;
-};
-
 struct alignas(16) FillOutlinePatternTilePropsUBO {
     float4 pattern_from;
     float4 pattern_to;
@@ -415,10 +395,10 @@ struct alignas(16) FillOutlinePatternInterpolateUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillOutlinePatternDrawableUBO& drawable [[buffer(4)]],
-                                device const FillOutlinePatternTilePropsUBO& tileProps [[buffer(5)]],
-                                device const FillOutlinePatternEvaluatedPropsUBO& props [[buffer(6)]],
-                                device const FillOutlinePatternInterpolateUBO& interp [[buffer(7)]]) {
+                                device const FillOutlinePatternDrawableUBO& drawable [[buffer(0)]],
+                                device const FillOutlinePatternTilePropsUBO& tileProps [[buffer(1)]],
+                                device const FillOutlinePatternInterpolateUBO& interp [[buffer(2)]],
+                                device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 #if defined(HAS_UNIFORM_u_pattern_from)
     const auto pattern_from = tileProps.pattern_from;
 #else
@@ -469,9 +449,9 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const FillOutlinePatternDrawableUBO& drawable [[buffer(4)]],
-                            device const FillOutlinePatternTilePropsUBO& tileProps [[buffer(5)]],
-                            device const FillOutlinePatternEvaluatedPropsUBO& props [[buffer(6)]],
+                            device const FillOutlinePatternDrawableUBO& drawable [[buffer(0)]],
+                            device const FillOutlinePatternTilePropsUBO& tileProps [[buffer(1)]],
+                            device const FillEvaluatedPropsUBO& props [[buffer(3)]],
                             texture2d<float, access::sample> image0 [[texture(0)]],
                             sampler image0_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -524,15 +504,15 @@ struct ShaderSource<BuiltIn::FillOutlineTriangulatedShader, gfx::Backend::Type::
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 2> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 pos_normal [[attribute(0)]];
-    uchar4 data [[attribute(1)]];
+    short2 pos_normal [[attribute(4)]];
+    uchar4 data [[attribute(5)]];
 };
 
 struct FragmentStage {
@@ -549,16 +529,9 @@ struct alignas(16) FillOutlineTriangulatedDrawableUBO {
     float pad;
 };
 
-struct alignas(16) FillOutlineTriangulatedPropertiesUBO {
-    float4 color;
-    float opacity;
-    float width;
-    float pad1, pad2;
-};
-
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillOutlineTriangulatedDrawableUBO& drawable [[buffer(2)]],
-                                device const FillOutlineTriangulatedPropertiesUBO& props [[buffer(3)]]) {
+                                device const FillOutlineTriangulatedDrawableUBO& drawable [[buffer(0)]],
+                                device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 
     // the distance over which the line edge fades out.
     // Retina devices need a smaller distance to avoid aliasing.
@@ -595,7 +568,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const FillOutlineTriangulatedPropertiesUBO& props [[buffer(3)]]) {
+                            device const FillEvaluatedPropsUBO& props [[buffer(3)]]) {
 
     // Calculate the distance of the pixel from the line in pixels.
     const float dist = length(in.normal) * in.width2;
@@ -605,7 +578,7 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
     const float blur2 = (1.0 / DEVICE_PIXEL_RATIO) * in.gamma_scale;
     const float alpha = clamp(min(dist + blur2, in.width2 - dist) / blur2, 0.0, 1.0);
 
-    return half4(props.color * (alpha * props.opacity));
+    return half4(props.outline_color * (alpha * props.opacity));
 }
 )";
 };

include/mbgl/shaders/mtl/fill_extrusion.hpp

@@ -14,61 +14,24 @@ struct ShaderSource<BuiltIn::FillExtrusionShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<AttributeInfo, 5> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
-struct alignas(16) FillExtrusionInterpolateUBO {
-    /*  0 */ float base_t;
-    /*  4 */ float height_t;
-    /*  8 */ float color_t;
-    /* 12 */ float pattern_from_t;
-    /* 16 */ float pattern_to_t;
-    /* 20 */ float pad1, pad2, pad3;
-    /* 32 */
-};
-static_assert(sizeof(FillExtrusionInterpolateUBO) == 2 * 16, "unexpected padding");
-
-struct alignas(16) FillExtrusionDrawableUBO {
-    /*   0 */ float4x4 matrix;
-    /*  64 */ float4 scale;
-    /*  80 */ float2 texsize;
-    /*  88 */ float2 pixel_coord_upper;
-    /*  96 */ float2 pixel_coord_lower;
-    /* 104 */ float height_factor;
-    /* 108 */ float pad;
-    /* 112 */
-};
-static_assert(sizeof(FillExtrusionDrawableUBO) == 7 * 16, "unexpected padding");
-
-struct alignas(16) FillExtrusionDrawablePropsUBO {
-    /*  0 */ float4 color;
-    /* 16 */ float4 light_color_pad;
-    /* 32 */ float4 light_position_base;
-    /* 48 */ float height;
-    /* 52 */ float light_intensity;
-    /* 56 */ float vertical_gradient;
-    /* 60 */ float opacity;
-    /* 64 */ float fade;
-    /* 68 */ float pad2, pad3, pad4;
-    /* 80 */
-};
-static_assert(sizeof(FillExtrusionDrawablePropsUBO) == 5 * 16, "unexpected padding");
-
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short4 normal_ed [[attribute(1)]];
+    short2 pos [[attribute(4)]];
+    short4 normal_ed [[attribute(5)]];
 
 #if !defined(HAS_UNIFORM_u_color)
-    float4 color [[attribute(2)]];
+    float4 color [[attribute(6)]];
 #endif
 #if !defined(HAS_UNIFORM_u_base)
-    float base [[attribute(3)]];
+    float base [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_height)
-    float height [[attribute(4)]];
+    float height [[attribute(8)]];
 #endif
 };
 
@@ -83,9 +46,9 @@ struct FragmentOutput {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillExtrusionDrawableUBO& fill [[buffer(5)]],
-                                device const FillExtrusionDrawablePropsUBO& props [[buffer(6)]],
-                                device const FillExtrusionInterpolateUBO& interp [[buffer(7)]]) {
+                                device const FillExtrusionDrawableUBO& fill [[buffer(0)]],
+                                device const FillExtrusionPropsUBO& props [[buffer(1)]],
+                                device const FillExtrusionInterpolateUBO& interp [[buffer(3)]]) {
 
 #if defined(HAS_UNIFORM_u_base)
     const auto base   = props.light_position_base.w;

include/mbgl/shaders/mtl/fill_extrusion_pattern.hpp

@@ -14,70 +14,27 @@ struct ShaderSource<BuiltIn::FillExtrusionPatternShader, gfx::Backend::Type::Met
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 6> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
-struct alignas(16) FillExtrusionDrawableTilePropsUBO {
-    /*  0 */ float4 pattern_from;
-    /* 16 */ float4 pattern_to;
-    /* 32 */
-};
-
-struct alignas(16) FillExtrusionInterpolateUBO {
-    /*  0 */ float base_t;
-    /*  4 */ float height_t;
-    /*  8 */ float color_t;
-    /* 12 */ float pattern_from_t;
-    /* 16 */ float pattern_to_t;
-    /* 20 */ float pad1, pad2, pad3;
-    /* 32 */
-};
-static_assert(sizeof(FillExtrusionInterpolateUBO) == 2 * 16, "unexpected padding");
-
-struct alignas(16) FillExtrusionDrawableUBO {
-    /*   0 */ float4x4 matrix;
-    /*  64 */ float4 scale;
-    /*  80 */ float2 texsize;
-    /*  88 */ float2 pixel_coord_upper;
-    /*  96 */ float2 pixel_coord_lower;
-    /* 104 */ float height_factor;
-    /* 108 */ float pad;
-    /* 112 */
-};
-static_assert(sizeof(FillExtrusionDrawableUBO) == 7 * 16, "unexpected padding");
-
-struct alignas(16) FillExtrusionDrawablePropsUBO {
-    /*  0 */ float4 color;
-    /* 16 */ float4 light_color_pad;
-    /* 32 */ float4 light_position_base;
-    /* 48 */ float height;
-    /* 52 */ float light_intensity;
-    /* 56 */ float vertical_gradient;
-    /* 60 */ float opacity;
-    /* 64 */ float fade;
-    /* 68 */ float pad2, pad3, pad4;
-    /* 80 */
-};
-static_assert(sizeof(FillExtrusionDrawablePropsUBO) == 5 * 16, "unexpected padding");
-
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short4 normal_ed [[attribute(1)]];
+    short2 pos [[attribute(4)]];
+    short4 normal_ed [[attribute(5)]];
 
 #if !defined(HAS_UNIFORM_u_base)
-    float base [[attribute(2)]];
+    float base [[attribute(6)]];
 #endif
 #if !defined(HAS_UNIFORM_u_height)
-    float height [[attribute(3)]];
+    float height [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_from)
-    ushort4 pattern_from [[attribute(4)]];
+    ushort4 pattern_from [[attribute(8)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_to)
-    ushort4 pattern_to [[attribute(5)]];
+    ushort4 pattern_to [[attribute(9)]];
 #endif
 };
 
@@ -101,10 +58,10 @@ struct FragmentOutput {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const FillExtrusionDrawableUBO& fill [[buffer(6)]],
-                                device const FillExtrusionDrawablePropsUBO& props [[buffer(7)]],
-                                device const FillExtrusionDrawableTilePropsUBO& tileProps [[buffer(8)]],
-                                device const FillExtrusionInterpolateUBO& interp [[buffer(9)]]) {
+                                device const FillExtrusionDrawableUBO& fill [[buffer(0)]],
+                                device const FillExtrusionPropsUBO& props [[buffer(1)]],
+                                device const FillExtrusionTilePropsUBO& tileProps [[buffer(2)]],
+                                device const FillExtrusionInterpolateUBO& interp [[buffer(3)]]) {
 
 #if defined(HAS_UNIFORM_u_base)
     const auto base   = props.light_position_base.w;
@@ -192,9 +149,9 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 fragment FragmentOutput fragmentMain(FragmentStage in [[stage_in]],
-                                    device const FillExtrusionDrawableUBO& fill [[buffer(6)]],
-                                    device const FillExtrusionDrawablePropsUBO& props [[buffer(7)]],
-                                    device const FillExtrusionDrawableTilePropsUBO& tileProps [[buffer(8)]],
+                                    device const FillExtrusionDrawableUBO& fill [[buffer(0)]],
+                                    device const FillExtrusionPropsUBO& props [[buffer(1)]],
+                                    device const FillExtrusionTilePropsUBO& tileProps [[buffer(2)]],
                                     texture2d<float, access::sample> image0 [[texture(0)]],
                                     sampler image0_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)

include/mbgl/shaders/mtl/heatmap.hpp

@@ -14,21 +14,21 @@ struct ShaderSource<BuiltIn::HeatmapShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<AttributeInfo, 3> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 3> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
+    short2 pos [[attribute(3)]];
 
 #if !defined(HAS_UNIFORM_u_weight)
-    float2 weight [[attribute(1)]];
+    float2 weight [[attribute(4)]];
 #endif
 #if !defined(HAS_UNIFORM_u_radius)
-    float2 radius [[attribute(2)]];
+    float2 radius [[attribute(5)]];
 #endif
 };
 
@@ -67,9 +67,9 @@ constant const float ZERO = 1.0 / 255.0 / 16.0;
 #define GAUSS_COEF 0.3989422804014327
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const HeatmapDrawableUBO& drawable [[buffer(3)]],
-                                device const HeatmapEvaluatedPropsUBO& props [[buffer(4)]],
-                                device const HeatmapInterpolateUBO& interp [[buffer(5)]]) {
+                                device const HeatmapDrawableUBO& drawable [[buffer(0)]],
+                                device const HeatmapEvaluatedPropsUBO& props [[buffer(1)]],
+                                device const HeatmapInterpolateUBO& interp [[buffer(2)]]) {
 
 #if defined(HAS_UNIFORM_u_weight)
     const auto weight = props.weight;
@@ -117,7 +117,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const HeatmapEvaluatedPropsUBO& props [[buffer(4)]]) {
+                            device const HeatmapEvaluatedPropsUBO& props [[buffer(1)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif

include/mbgl/shaders/mtl/heatmap_texture.hpp

@@ -14,15 +14,15 @@ struct ShaderSource<BuiltIn::HeatmapTextureShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 1> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 2> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
+    short2 pos [[attribute(1)]];
 };
 
 struct FragmentStage {
@@ -30,7 +30,7 @@ struct FragmentStage {
     float2 pos;
 };
 
-struct alignas(16) HeatmapTextureDrawableUBO {
+struct alignas(16) HeatmapTexturePropsUBO {
     float4x4 matrix;
     float2 world;
     float opacity;
@@ -39,10 +39,10 @@ struct alignas(16) HeatmapTextureDrawableUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const HeatmapTextureDrawableUBO& drawable [[buffer(1)]]) {
+                                device const HeatmapTexturePropsUBO& props [[buffer(0)]]) {
 
     const float2 pos = float2(vertx.pos);
-    const float4 position = drawable.matrix * float4(pos * drawable.world, 0, 1);
+    const float4 position = props.matrix * float4(pos * props.world, 0, 1);
 
     return {
         .position    = position,
@@ -51,7 +51,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const HeatmapTextureDrawableUBO& drawable [[buffer(1)]],
+                            device const HeatmapTexturePropsUBO& props [[buffer(0)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             texture2d<float, access::sample> color_ramp [[texture(1)]],
                             sampler image_sampler [[sampler(0)]],
@@ -63,7 +63,7 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 
     float t = image.sample(image_sampler, in.pos).r;
     float4 color = color_ramp.sample(color_ramp_sampler, float2(t, 0.5));
-    return half4(color * drawable.opacity);
+    return half4(color * props.opacity);
 }
 )";
 };

include/mbgl/shaders/mtl/hillshade.hpp

@@ -14,16 +14,16 @@ struct ShaderSource<BuiltIn::HillshadeShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 2> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short2 texture_pos [[attribute(1)]];
+    short2 pos [[attribute(2)]];
+    short2 texture_pos [[attribute(3)]];
 };
 
 struct FragmentStage {
@@ -44,7 +44,7 @@ struct alignas(16) HillshadeEvaluatedPropsUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const HillshadeDrawableUBO& drawable [[buffer(2)]]) {
+                                device const HillshadeDrawableUBO& drawable [[buffer(0)]]) {
     
     const float4 position = drawable.matrix * float4(float2(vertx.pos), 0, 1);
     float2 pos = float2(vertx.texture_pos) / 8192.0;
@@ -57,8 +57,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const HillshadeDrawableUBO& drawable [[buffer(2)]],
-                            device const HillshadeEvaluatedPropsUBO& props [[buffer(3)]],
+                            device const HillshadeDrawableUBO& drawable [[buffer(0)]],
+                            device const HillshadeEvaluatedPropsUBO& props [[buffer(1)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             sampler image_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)

include/mbgl/shaders/mtl/hillshade_prepare.hpp

@@ -14,15 +14,15 @@ struct ShaderSource<BuiltIn::HillshadePrepareShader, gfx::Backend::Type::Metal>
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<AttributeInfo, 2> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short2 texture_pos [[attribute(1)]];
+    short2 pos [[attribute(1)]];
+    short2 texture_pos [[attribute(2)]];
 };
 
 struct FragmentStage {
@@ -39,7 +39,7 @@ struct alignas(16) HillshadePrepareDrawableUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const HillshadePrepareDrawableUBO& drawable [[buffer(2)]]) {
+                                device const HillshadePrepareDrawableUBO& drawable [[buffer(0)]]) {
 
     const float4 position = drawable.matrix * float4(float2(vertx.pos), 0, 1);
 
@@ -61,7 +61,7 @@ float getElevation(float2 coord, float bias, texture2d<float, access::sample> im
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const HillshadePrepareDrawableUBO& drawable [[buffer(2)]],
+                            device const HillshadePrepareDrawableUBO& drawable [[buffer(0)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             sampler image_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)

include/mbgl/shaders/mtl/line.hpp

@@ -14,33 +14,33 @@ struct ShaderSource<BuiltIn::LineShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 8> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 0> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 pos_normal [[attribute(0)]];
-    uchar4 data [[attribute(1)]];
+    short2 pos_normal [[attribute(5)]];
+    uchar4 data [[attribute(6)]];
 
 #if !defined(HAS_UNIFORM_u_color)
-    float4 color [[attribute(2)]];
+    float4 color [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_blur)
-    float2 blur [[attribute(3)]];
+    float2 blur [[attribute(8)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(4)]];
+    float2 opacity [[attribute(9)]];
 #endif
 #if !defined(HAS_UNIFORM_u_gapwidth)
-    float2 gapwidth [[attribute(5)]];
+    float2 gapwidth [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_offset)
-    float2 offset [[attribute(6)]];
+    float2 offset [[attribute(11)]];
 #endif
 #if !defined(HAS_UNIFORM_u_width)
-    float2 width [[attribute(7)]];
+    float2 width [[attribute(12)]];
 #endif
 };
 
@@ -61,11 +61,27 @@ struct FragmentStage {
 #endif
 };
 
+struct alignas(16) LineDrawableUBO {
+    float4x4 matrix;
+    float ratio;
+    float pad1, pad2, pad3;
+};
+
+struct alignas(16) LineInterpolationUBO {
+    float color_t;
+    float blur_t;
+    float opacity_t;
+    float gapwidth_t;
+    float offset_t;
+    float width_t;
+    float pad1, pad2;
+};
+
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const LineDynamicUBO& dynamic [[buffer(8)]],
-                                device const LineUBO& line [[buffer(9)]],
-                                device const LinePropertiesUBO& props [[buffer(10)]],
-                                device const LineInterpolationUBO& interp [[buffer(11)]]) {
+                                device const LineDynamicUBO& dynamic [[buffer(0)]],
+                                device const LineDrawableUBO& drawable [[buffer(1)]],
+                                device const LineInterpolationUBO& interp [[buffer(2)]],
+                                device const LineEvaluatedPropsUBO& props [[buffer(4)]]) {
 
 #if defined(HAS_UNIFORM_u_gapwidth)
     const auto gapwidth = props.gapwidth / 2;
@@ -112,8 +128,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float t = 1.0 - abs(u);
     const float2 offset2 = offset * a_extrude * LINE_NORMAL_SCALE * v_normal.y * float2x2(t, -u, u, t);
 
-    const float4 projected_extrude = line.matrix * float4(dist / line.ratio, 0.0, 0.0);
-    const float4 position = line.matrix * float4(pos + offset2 / line.ratio, 0.0, 1.0) + projected_extrude;
+    const float4 projected_extrude = drawable.matrix * float4(dist / drawable.ratio, 0.0, 0.0);
+    const float4 position = drawable.matrix * float4(pos + offset2 / drawable.ratio, 0.0, 1.0) + projected_extrude;
 
     // calculate how much the perspective view squishes or stretches the extrude
     const float extrude_length_without_perspective = length(dist);
@@ -138,8 +154,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const LineUBO& line [[buffer(9)]],
-                            device const LinePropertiesUBO& props [[buffer(10)]]) {
+                            device const LineEvaluatedPropsUBO& props [[buffer(4)]]) {
 #if defined(OVERDRAW_INSPECTOR)
     return half4(1.0);
 #endif
@@ -173,42 +188,211 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 )";
 };
 
+template <>
+struct ShaderSource<BuiltIn::LineGradientShader, gfx::Backend::Type::Metal> {
+    static constexpr auto name = "LineGradientShader";
+    static constexpr auto vertexMainFunction = "vertexMain";
+    static constexpr auto fragmentMainFunction = "fragmentMain";
+
+    static const std::array<UniformBlockInfo, 4> uniforms;
+    static const std::array<AttributeInfo, 7> attributes;
+    static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
+    static const std::array<TextureInfo, 1> textures;
+
+    static constexpr auto source = R"(
+struct VertexStage {
+    short2 pos_normal [[attribute(5)]];
+    uchar4 data [[attribute(6)]];
+    float2 blur [[attribute(7)]];
+    float2 opacity [[attribute(8)]];
+    float2 gapwidth [[attribute(9)]];
+    float2 offset [[attribute(10)]];
+    float2 width [[attribute(11)]];
+};
+
+struct FragmentStage {
+    float4 position [[position, invariant]];
+    float2 width2;
+    half2 normal;
+    half gamma_scale;
+    float lineprogress;
+
+#if !defined(HAS_UNIFORM_u_blur)
+    half blur;
+#endif
+#if !defined(HAS_UNIFORM_u_opacity)
+    half opacity;
+#endif
+};
+
+struct alignas(16) LineGradientDrawableUBO {
+    float4x4 matrix;
+    float ratio;
+    float pad1, pad2, pad3;
+};
+
+struct alignas(16) LineGradientInterpolationUBO {
+    float blur_t;
+    float opacity_t;
+    float gapwidth_t;
+    float offset_t;
+    float width_t;
+    float pad1, pad2, pad3;
+};
+
+FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
+                                device const LineDynamicUBO& dynamic [[buffer(0)]],
+                                device const LineGradientDrawableUBO& drawable [[buffer(1)]],
+                                device const LineGradientInterpolationUBO& interp [[buffer(2)]],
+                                device const LineEvaluatedPropsUBO& props [[buffer(4)]]) {
+
+#if !defined(HAS_UNIFORM_u_blur)
+    const auto blur     = unpack_mix_float(vertx.blur,     interp.blur_t);
+#endif
+#if !defined(HAS_UNIFORM_u_opacity)
+    const auto opacity  = unpack_mix_float(vertx.opacity,  interp.opacity_t);
+#endif
+#if defined(HAS_UNIFORM_u_gapwidth)
+    const auto gapwidth = props.gapwidth;
+#else
+    const auto gapwidth = unpack_mix_float(vertx.gapwidth, interp.gapwidth_t) / 2;
+#endif
+#if defined(HAS_UNIFORM_u_offset)
+    const auto offset   = props.offset;
+#else
+    const auto offset   = unpack_mix_float(vertx.offset,   interp.offset_t) * -1;
+#endif
+#if defined(HAS_UNIFORM_u_width)
+    const auto width    = props.width;
+#else
+    const auto width    = unpack_mix_float(vertx.width,    interp.width_t);
+#endif
+
+    // the distance over which the line edge fades out.
+    // Retina devices need a smaller distance to avoid aliasing.
+    const float ANTIALIASING = 1.0 / DEVICE_PIXEL_RATIO / 2.0;
+
+    const float2 a_extrude = float2(vertx.data.xy) - 128.0;
+    const float a_direction = fmod(float(vertx.data.z), 4.0) - 1.0;
+    const float v_lineprogress = (floor(float(vertx.data.z) / 4.0) + vertx.data.w * 64.0) * 2.0 / MAX_LINE_DISTANCE;
+    const float2 pos = floor(float2(vertx.pos_normal) * 0.5);
+
+    // x is 1 if it's a round cap, 0 otherwise
+    // y is 1 if the normal points up, and -1 if it points down
+    // We store these in the least significant bit of a_pos_normal
+    const float2 normal = float2(vertx.pos_normal) - 2.0 * pos;
+    const float2 v_normal = float2(normal.x, normal.y * 2.0 - 1.0);
+
+    const float halfwidth = width / 2.0;
+    const float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);
+    const float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + (halfwidth == 0.0 ? 0.0 : ANTIALIASING);
+
+    // Scale the extrusion vector down to a normal and then up by the line width of this vertex.
+    const float2 dist = outset * a_extrude * LINE_NORMAL_SCALE;
+
+    // Calculate the offset when drawing a line that is to the side of the actual line.
+    // We do this by creating a vector that points towards the extrude, but rotate
+    // it when we're drawing round end points (a_direction = -1 or 1) since their
+    // extrude vector points in another direction.
+    const float u = 0.5 * a_direction;
+    const float t = 1.0 - abs(u);
+    const float2 offset2 = offset * a_extrude * LINE_NORMAL_SCALE * v_normal.y * float2x2(t, -u, u, t);
+
+    const float4 projected_extrude = drawable.matrix * float4(dist / drawable.ratio, 0.0, 0.0);
+    const float4 position = drawable.matrix * float4(pos + offset2 / drawable.ratio, 0.0, 1.0) + projected_extrude;
+
+    // calculate how much the perspective view squishes or stretches the extrude
+    const float extrude_length_without_perspective = length(dist);
+    const float extrude_length_with_perspective = length(projected_extrude.xy / position.w * dynamic.units_to_pixels);
+
+    return {
+        .position     = position,
+        .width2       = float2(outset, inset),
+        .normal       = half2(v_normal),
+        .gamma_scale  = half(extrude_length_without_perspective / extrude_length_with_perspective),
+        .lineprogress = v_lineprogress,
+
+#if !defined(HAS_UNIFORM_u_blur)
+        .blur         = half(blur),
+#endif
+#if !defined(HAS_UNIFORM_u_opacity)
+        .opacity      = half(opacity),
+#endif
+    };
+}
+
+half4 fragment fragmentMain(FragmentStage in [[stage_in]],
+                            device const LineEvaluatedPropsUBO& props [[buffer(4)]],
+                            texture2d<float, access::sample> gradientTexture [[texture(0)]]) {
+#if defined(OVERDRAW_INSPECTOR)
+    return half4(1.0);
+#endif
+
+#if defined(HAS_UNIFORM_u_blur)
+    const float blur = props.blur;
+#else
+    const float blur = float(in.blur);
+#endif
+#if defined(HAS_UNIFORM_u_opacity)
+    const float opacity = props.opacity;
+#else
+    const float opacity = float(in.opacity);
+#endif
+
+    // Calculate the distance of the pixel from the line in pixels.
+    const float dist = length(in.normal) * in.width2.x;
+
+    // Calculate the antialiasing fade factor. This is either when fading in the
+    // line in case of an offset line (v_width2.y) or when fading out (v_width2.x)
+    const float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * in.gamma_scale;
+    const float alpha = clamp(min(dist - (in.width2.y - blur2), in.width2.x - dist) / blur2, 0.0, 1.0);
+
+    // For gradient lines, v_lineprogress is the ratio along the entire line,
+    // scaled to [0, 2^15), and the gradient ramp is stored in a texture.
+    constexpr sampler sampler2d(coord::normalized, filter::linear);
+    const float4 color = gradientTexture.sample(sampler2d, float2(in.lineprogress, 0.5));
+
+    return half4(color * (alpha * opacity));
+}
+)";
+};
+
 template <>
 struct ShaderSource<BuiltIn::LinePatternShader, gfx::Backend::Type::Metal> {
     static constexpr auto name = "LinePatternShader";
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<AttributeInfo, 9> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 pos_normal [[attribute(0)]];
-    uchar4 data [[attribute(1)]];
+    short2 pos_normal [[attribute(5)]];
+    uchar4 data [[attribute(6)]];
 
 #if !defined(HAS_UNIFORM_u_blur)
-    float2 blur [[attribute(2)]];
+    float2 blur [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(3)]];
+    float2 opacity [[attribute(8)]];
 #endif
 #if !defined(HAS_UNIFORM_u_gapwidth)
-    float2 gapwidth [[attribute(4)]];
+    float2 gapwidth [[attribute(9)]];
 #endif
 #if !defined(HAS_UNIFORM_u_offset)
-    float2 offset [[attribute(5)]];
+    float2 offset [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_width)
-    float2 width [[attribute(6)]];
+    float2 width [[attribute(11)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_from)
-    ushort4 pattern_from [[attribute(7)]];
+    ushort4 pattern_from [[attribute(12)]];
 #endif
 #if !defined(HAS_UNIFORM_u_pattern_to)
-    ushort4 pattern_to [[attribute(8)]];
+    ushort4 pattern_to [[attribute(13)]];
 #endif
 };
 
@@ -233,7 +417,7 @@ struct FragmentStage {
 #endif
 };
 
-struct alignas(16) LinePatternUBO {
+struct alignas(16) LinePatternDrawableUBO {
     float4x4 matrix;
     float4 scale;
     float2 texsize;
@@ -241,15 +425,6 @@ struct alignas(16) LinePatternUBO {
     float fade;
 };
 
-struct alignas(16) LinePatternPropertiesUBO {
-    float blur;
-    float opacity;
-    float offset;
-    float gapwidth;
-    float width;
-    float pad1, pad2, pad3;
-};
-
 struct alignas(16) LinePatternInterpolationUBO {
     float blur_t;
     float opacity_t;
@@ -267,11 +442,11 @@ struct alignas(16) LinePatternTilePropertiesUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const LineDynamicUBO& dynamic [[buffer(9)]],
-                                device const LinePatternUBO& line [[buffer(10)]],
-                                device const LinePatternPropertiesUBO& props [[buffer(11)]],
-                                device const LinePatternInterpolationUBO& interp [[buffer(12)]],
-                                device const LinePatternTilePropertiesUBO& tileProps [[buffer(13)]]) {
+                                device const LineDynamicUBO& dynamic [[buffer(0)]],
+                                device const LinePatternDrawableUBO& drawable [[buffer(1)]],
+                                device const LinePatternInterpolationUBO& interp [[buffer(2)]],
+                                device const LinePatternTilePropertiesUBO& tileProps [[buffer(3)]],
+                                device const LineEvaluatedPropsUBO& props [[buffer(4)]]) {
 
 #if defined(HAS_UNIFORM_u_gapwidth)
     const auto gapwidth = props.gapwidth / 2;
@@ -320,8 +495,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float t = 1.0 - abs(u);
     const float2 offset2 = offset * a_extrude * LINE_NORMAL_SCALE * v_normal.y * float2x2(t, -u, u, t);
 
-    const float4 projected_extrude = line.matrix * float4(dist / line.ratio, 0.0, 0.0);
-    const float4 position = line.matrix * float4(pos + offset2 / line.ratio, 0.0, 1.0) + projected_extrude;
+    const float4 projected_extrude = drawable.matrix * float4(dist / drawable.ratio, 0.0, 0.0);
+    const float4 position = drawable.matrix * float4(pos + offset2 / drawable.ratio, 0.0, 1.0) + projected_extrude;
 
     // calculate how much the perspective view squishes or stretches the extrude
     const float extrude_length_without_perspective = length(dist);
@@ -350,9 +525,9 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const LinePatternUBO& line [[buffer(10)]],
-                            device const LinePatternPropertiesUBO& props [[buffer(11)]],
-                            device const LinePatternTilePropertiesUBO& tileProps [[buffer(13)]],
+                            device const LinePatternDrawableUBO& drawable [[buffer(1)]],
+                            device const LinePatternTilePropertiesUBO& tileProps [[buffer(3)]],
+                            device const LineEvaluatedPropsUBO& props [[buffer(4)]],
                             texture2d<float, access::sample> image0 [[texture(0)]],
                             sampler image0_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -385,10 +560,10 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
     const float2 pattern_tl_b = pattern_to.xy;
     const float2 pattern_br_b = pattern_to.zw;
 
-    const float pixelRatio = line.scale.x;
-    const float tileZoomRatio = line.scale.y;
-    const float fromScale = line.scale.z;
-    const float toScale = line.scale.w;
+    const float pixelRatio = drawable.scale.x;
+    const float tileZoomRatio = drawable.scale.y;
+    const float fromScale = drawable.scale.z;
+    const float toScale = drawable.scale.w;
 
     const float2 display_size_a = float2((pattern_br_a.x - pattern_tl_a.x) / pixelRatio, (pattern_br_a.y - pattern_tl_a.y) / pixelRatio);
     const float2 display_size_b = float2((pattern_br_b.x - pattern_tl_b.x) / pixelRatio, (pattern_br_b.y - pattern_tl_b.y) / pixelRatio);
@@ -415,10 +590,10 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
     // the texture coordinate
     const float y_a = 0.5 + (in.normal.y * clamp(in.width2.x, 0.0, (pattern_size_a.y + 2.0) / 2.0) / pattern_size_a.y);
     const float y_b = 0.5 + (in.normal.y * clamp(in.width2.x, 0.0, (pattern_size_b.y + 2.0) / 2.0) / pattern_size_b.y);
-    const float2 pos_a = mix(pattern_tl_a / line.texsize, pattern_br_a / line.texsize, float2(x_a, y_a));
-    const float2 pos_b = mix(pattern_tl_b / line.texsize, pattern_br_b / line.texsize, float2(x_b, y_b));
+    const float2 pos_a = mix(pattern_tl_a / drawable.texsize, pattern_br_a / drawable.texsize, float2(x_a, y_a));
+    const float2 pos_b = mix(pattern_tl_b / drawable.texsize, pattern_br_b / drawable.texsize, float2(x_b, y_b));
 
-    const float4 color = mix(image0.sample(image0_sampler, pos_a), image0.sample(image0_sampler, pos_b), line.fade);
+    const float4 color = mix(image0.sample(image0_sampler, pos_a), image0.sample(image0_sampler, pos_b), drawable.fade);
 
     return half4(color * alpha * opacity);
 }
@@ -431,36 +606,36 @@ struct ShaderSource<BuiltIn::LineSDFShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<AttributeInfo, 9> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    short2 pos_normal [[attribute(0)]];
-    uchar4 data [[attribute(1)]];
+    short2 pos_normal [[attribute(5)]];
+    uchar4 data [[attribute(6)]];
 
 #if !defined(HAS_UNIFORM_u_color)
-    float4 color [[attribute(2)]];
+    float4 color [[attribute(7)]];
 #endif
 #if !defined(HAS_UNIFORM_u_blur)
-    float2 blur [[attribute(3)]];
+    float2 blur [[attribute(8)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float2 opacity [[attribute(4)]];
+    float2 opacity [[attribute(9)]];
 #endif
 #if !defined(HAS_UNIFORM_u_gapwidth)
-    float2 gapwidth [[attribute(5)]];
+    float2 gapwidth [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_offset)
-    float2 offset [[attribute(6)]];
+    float2 offset [[attribute(11)]];
 #endif
 #if !defined(HAS_UNIFORM_u_width)
-    float2 width [[attribute(7)]];
+    float2 width [[attribute(12)]];
 #endif
 #if !defined(HAS_UNIFORM_u_floorwidth)
-    float2 floorwidth [[attribute(8)]];
+    float2 floorwidth [[attribute(13)]];
 #endif
 };
 
@@ -486,7 +661,7 @@ struct FragmentStage {
 #endif
 };
 
-struct alignas(16) LineSDFUBO {
+struct alignas(16) LineSDFDrawableUBO {
     float4x4 matrix;
     float2 patternscale_a;
     float2 patternscale_b;
@@ -498,17 +673,6 @@ struct alignas(16) LineSDFUBO {
     float pad1, pad2, pad3;
 };
 
-struct alignas(16) LineSDFPropertiesUBO {
-    float4 color;
-    float blur;
-    float opacity;
-    float gapwidth;
-    float offset;
-    float width;
-    float floorwidth;
-    float pad1, pad2;
-};
-
 struct alignas(16) LineSDFInterpolationUBO {
     float color_t;
     float blur_t;
@@ -521,10 +685,10 @@ struct alignas(16) LineSDFInterpolationUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const LineDynamicUBO& dynamic [[buffer(9)]],
-                                device const LineSDFUBO& line [[buffer(10)]],
-                                device const LineSDFPropertiesUBO& props [[buffer(11)]],
-                                device const LineSDFInterpolationUBO& interp [[buffer(12)]]) {
+                                device const LineDynamicUBO& dynamic [[buffer(0)]],
+                                device const LineSDFDrawableUBO& drawable [[buffer(1)]],
+                                device const LineSDFInterpolationUBO& interp [[buffer(2)]],
+                                device const LineEvaluatedPropsUBO& props [[buffer(4)]]) {
 
 #if defined(HAS_UNIFORM_u_gapwidth)
     const auto gapwidth   = props.gapwidth / 2;
@@ -578,8 +742,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float t = 1.0 - abs(u);
     const float2 offset2 = offset * a_extrude * LINE_NORMAL_SCALE * v_normal.y * float2x2(t, -u, u, t);
 
-    const float4 projected_extrude = line.matrix * float4(dist / line.ratio, 0.0, 0.0);
-    const float4 position = line.matrix * float4(pos + offset2 / line.ratio, 0.0, 1.0) + projected_extrude;
+    const float4 projected_extrude = drawable.matrix * float4(dist / drawable.ratio, 0.0, 0.0);
+    const float4 position = drawable.matrix * float4(pos + offset2 / drawable.ratio, 0.0, 1.0) + projected_extrude;
 
     // calculate how much the perspective view squishes or stretches the extrude
     const float extrude_length_without_perspective = length(dist);
@@ -590,8 +754,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
         .width2       = float2(outset, inset),
         .normal       = v_normal,
         .gamma_scale  = half(extrude_length_without_perspective / extrude_length_with_perspective),
-        .tex_a        = float2(linesofar * line.patternscale_a.x / floorwidth, (normal.y * line.patternscale_a.y + line.tex_y_a) * 2.0),
-        .tex_b        = float2(linesofar * line.patternscale_b.x / floorwidth, (normal.y * line.patternscale_b.y + line.tex_y_b) * 2.0),
+        .tex_a        = float2(linesofar * drawable.patternscale_a.x / floorwidth, (normal.y * drawable.patternscale_a.y + drawable.tex_y_a) * 2.0),
+        .tex_b        = float2(linesofar * drawable.patternscale_b.x / floorwidth, (normal.y * drawable.patternscale_b.y + drawable.tex_y_b) * 2.0),
 
 #if !defined(HAS_UNIFORM_u_color)
         .color        = unpack_mix_color(vertx.color, interp.color_t),
@@ -609,8 +773,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const LineSDFUBO& line [[buffer(10)]],
-                            device const LineSDFPropertiesUBO& props [[buffer(11)]],
+                            device const LineSDFDrawableUBO& drawable [[buffer(1)]],
+                            device const LineEvaluatedPropsUBO& props [[buffer(4)]],
                             texture2d<float, access::sample> image0 [[texture(0)]],
                             sampler image0_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -644,10 +808,10 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 
     const float sdfdist_a = image0.sample(image0_sampler, in.tex_a).a;
     const float sdfdist_b = image0.sample(image0_sampler, in.tex_b).a;
-    const float sdfdist = mix(sdfdist_a, sdfdist_b, line.mix);
+    const float sdfdist = mix(sdfdist_a, sdfdist_b, drawable.mix);
     const float dist = length(in.normal) * in.width2.x;
     const float alpha = clamp(min(dist - (in.width2.y - blur2), in.width2.x - dist) / blur2, 0.0, 1.0) *
-                        smoothstep(0.5 - line.sdfgamma / floorwidth, 0.5 + line.sdfgamma / floorwidth, sdfdist);
+                        smoothstep(0.5 - drawable.sdfgamma / floorwidth, 0.5 + drawable.sdfgamma / floorwidth, sdfdist);
 
     return half4(color * (alpha * opacity));
 }

include/mbgl/shaders/mtl/line_gradient.hpp

@@ -1,167 +0,0 @@
-#pragma once
-
-#include <mbgl/shaders/line_layer_ubo.hpp>
-#include <mbgl/shaders/shader_source.hpp>
-#include <mbgl/shaders/mtl/common.hpp>
-#include <mbgl/shaders/mtl/shader_program.hpp>
-
-namespace mbgl {
-namespace shaders {
-
-template <>
-struct ShaderSource<BuiltIn::LineGradientShader, gfx::Backend::Type::Metal> {
-    static constexpr auto name = "LineGradientShader";
-    static constexpr auto vertexMainFunction = "vertexMain";
-    static constexpr auto fragmentMainFunction = "fragmentMain";
-
-    static const std::array<AttributeInfo, 7> attributes;
-    static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 4> uniforms;
-    static const std::array<TextureInfo, 1> textures;
-
-    static constexpr auto source = R"(
-struct VertexStage {
-    short2 pos_normal [[attribute(0)]];
-    uchar4 data [[attribute(1)]];
-    float2 blur [[attribute(2)]];
-    float2 opacity [[attribute(3)]];
-    float2 gapwidth [[attribute(4)]];
-    float2 offset [[attribute(5)]];
-    float2 width [[attribute(6)]];
-};
-
-struct FragmentStage {
-    float4 position [[position, invariant]];
-    float2 width2;
-    half2 normal;
-    half gamma_scale;
-    float lineprogress;
-
-#if !defined(HAS_UNIFORM_u_blur)
-    half blur;
-#endif
-#if !defined(HAS_UNIFORM_u_opacity)
-    half opacity;
-#endif
-};
-
-FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const LineDynamicUBO& dynamic [[buffer(7)]],
-                                device const LineGradientUBO& line [[buffer(8)]],
-                                device const LineGradientPropertiesUBO& props [[buffer(9)]],
-                                device const LineGradientInterpolationUBO& interp [[buffer(10)]]) {
-
-#if !defined(HAS_UNIFORM_u_blur)
-    const auto blur     = unpack_mix_float(vertx.blur,     interp.blur_t);
-#endif
-#if !defined(HAS_UNIFORM_u_opacity)
-    const auto opacity  = unpack_mix_float(vertx.opacity,  interp.opacity_t);
-#endif
-#if defined(HAS_UNIFORM_u_gapwidth)
-    const auto gapwidth = props.gapwidth;
-#else
-    const auto gapwidth = unpack_mix_float(vertx.gapwidth, interp.gapwidth_t) / 2;
-#endif
-#if defined(HAS_UNIFORM_u_offset)
-    const auto offset   = props.offset;
-#else
-    const auto offset   = unpack_mix_float(vertx.offset,   interp.offset_t) * -1;
-#endif
-#if defined(HAS_UNIFORM_u_width)
-    const auto width    = props.width;
-#else
-    const auto width    = unpack_mix_float(vertx.width,    interp.width_t);
-#endif
-
-    // the distance over which the line edge fades out.
-    // Retina devices need a smaller distance to avoid aliasing.
-    const float ANTIALIASING = 1.0 / DEVICE_PIXEL_RATIO / 2.0;
-
-    const float2 a_extrude = float2(vertx.data.xy) - 128.0;
-    const float a_direction = fmod(float(vertx.data.z), 4.0) - 1.0;
-    const float v_lineprogress = (floor(float(vertx.data.z) / 4.0) + vertx.data.w * 64.0) * 2.0 / MAX_LINE_DISTANCE;
-    const float2 pos = floor(float2(vertx.pos_normal) * 0.5);
-
-    // x is 1 if it's a round cap, 0 otherwise
-    // y is 1 if the normal points up, and -1 if it points down
-    // We store these in the least significant bit of a_pos_normal
-    const float2 normal = float2(vertx.pos_normal) - 2.0 * pos;
-    const float2 v_normal = float2(normal.x, normal.y * 2.0 - 1.0);
-
-    const float halfwidth = width / 2.0;
-    const float inset = gapwidth + (gapwidth > 0.0 ? ANTIALIASING : 0.0);
-    const float outset = gapwidth + halfwidth * (gapwidth > 0.0 ? 2.0 : 1.0) + (halfwidth == 0.0 ? 0.0 : ANTIALIASING);
-
-    // Scale the extrusion vector down to a normal and then up by the line width of this vertex.
-    const float2 dist = outset * a_extrude * LINE_NORMAL_SCALE;
-
-    // Calculate the offset when drawing a line that is to the side of the actual line.
-    // We do this by creating a vector that points towards the extrude, but rotate
-    // it when we're drawing round end points (a_direction = -1 or 1) since their
-    // extrude vector points in another direction.
-    const float u = 0.5 * a_direction;
-    const float t = 1.0 - abs(u);
-    const float2 offset2 = offset * a_extrude * LINE_NORMAL_SCALE * v_normal.y * float2x2(t, -u, u, t);
-
-    const float4 projected_extrude = line.matrix * float4(dist / line.ratio, 0.0, 0.0);
-    const float4 position = line.matrix * float4(pos + offset2 / line.ratio, 0.0, 1.0) + projected_extrude;
-
-    // calculate how much the perspective view squishes or stretches the extrude
-    const float extrude_length_without_perspective = length(dist);
-    const float extrude_length_with_perspective = length(projected_extrude.xy / position.w * dynamic.units_to_pixels);
-
-    return {
-        .position     = position,
-        .width2       = float2(outset, inset),
-        .normal       = half2(v_normal),
-        .gamma_scale  = half(extrude_length_without_perspective / extrude_length_with_perspective),
-        .lineprogress = v_lineprogress,
-
-#if !defined(HAS_UNIFORM_u_blur)
-        .blur         = half(blur),
-#endif
-#if !defined(HAS_UNIFORM_u_opacity)
-        .opacity      = half(opacity),
-#endif
-    };
-}
-
-half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const LineGradientUBO& line [[buffer(8)]],
-                            device const LineGradientPropertiesUBO& props [[buffer(9)]],
-                            texture2d<float, access::sample> gradientTexture [[texture(0)]]) {
-#if defined(OVERDRAW_INSPECTOR)
-    return half4(1.0);
-#endif
-
-#if defined(HAS_UNIFORM_u_blur)
-    const float blur = props.blur;
-#else
-    const float blur = float(in.blur);
-#endif
-#if defined(HAS_UNIFORM_u_opacity)
-    const float opacity = props.opacity;
-#else
-    const float opacity = float(in.opacity);
-#endif
-
-    // Calculate the distance of the pixel from the line in pixels.
-    const float dist = length(in.normal) * in.width2.x;
-
-    // Calculate the antialiasing fade factor. This is either when fading in the
-    // line in case of an offset line (v_width2.y) or when fading out (v_width2.x)
-    const float blur2 = (blur + 1.0 / DEVICE_PIXEL_RATIO) * in.gamma_scale;
-    const float alpha = clamp(min(dist - (in.width2.y - blur2), in.width2.x - dist) / blur2, 0.0, 1.0);
-
-    // For gradient lines, v_lineprogress is the ratio along the entire line,
-    // scaled to [0, 2^15), and the gradient ramp is stored in a texture.
-    constexpr sampler sampler2d(coord::normalized, filter::linear);
-    const float4 color = gradientTexture.sample(sampler2d, float2(in.lineprogress, 0.5));
-
-    return half4(color * (alpha * opacity));
-}
-)";
-};
-
-} // namespace shaders
-} // namespace mbgl

include/mbgl/shaders/mtl/raster.hpp

@@ -14,16 +14,16 @@ struct ShaderSource<BuiltIn::RasterShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 2> uniforms;
     static const std::array<AttributeInfo, 2> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 1> uniforms;
     static const std::array<TextureInfo, 2> textures;
 
     static constexpr auto source = R"(
 
 struct VertexStage {
-    short2 pos [[attribute(0)]];
-    short2 texture_pos [[attribute(1)]];
+    short2 pos [[attribute(2)]];
+    short2 texture_pos [[attribute(3)]];
 };
 
 struct FragmentStage {
@@ -34,6 +34,9 @@ struct FragmentStage {
 
 struct alignas(16) RasterDrawableUBO {
     float4x4 matrix;
+};
+
+struct alignas(16) RasterEvaluatedPropsUBO {
     float3 spin_weights;
     float2 tl_parent;
     float scale_parent;
@@ -50,7 +53,8 @@ struct alignas(16) RasterDrawableUBO {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const RasterDrawableUBO& drawable [[buffer(2)]]) {
+                                device const RasterDrawableUBO& drawable [[buffer(0)]],
+                                device const RasterEvaluatedPropsUBO& props [[buffer(1)]]) {
 
     const float4 position = drawable.matrix * float4(float2(vertx.pos), 0, 1);
 
@@ -59,8 +63,8 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     // as an arbitrarily high number to preserve adequate precision when rendering.
     // This is also the same value as the EXTENT we are using for our tile buffer pos coordinates,
     // so math for modifying either is consistent.
-    const float2 pos0 = (((float2(vertx.texture_pos) / 8192.0) - 0.5) / drawable.buffer_scale ) + 0.5;
-    const float2 pos1 = (pos0 * drawable.scale_parent) + drawable.tl_parent;
+    const float2 pos0 = (((float2(vertx.texture_pos) / 8192.0) - 0.5) / props.buffer_scale ) + 0.5;
+    const float2 pos1 = (pos0 * props.scale_parent) + props.tl_parent;
 
     return {
         .position    = position,
@@ -70,7 +74,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const RasterDrawableUBO& drawable [[buffer(2)]],
+                            device const RasterEvaluatedPropsUBO& props [[buffer(1)]],
                             texture2d<float, access::sample> image0 [[texture(0)]],
                             texture2d<float, access::sample> image1 [[texture(1)]],
                             sampler image0_sampler [[sampler(0)]],
@@ -88,26 +92,26 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
     if (color1.a > 0.0) {
         color1.rgb = color1.rgb / color1.a;
     }
-    float4 color = mix(color0, color1, drawable.fade_t);
-    color.a *= drawable.opacity;
+    float4 color = mix(color0, color1, props.fade_t);
+    color.a *= props.opacity;
     float3 rgb = color.rgb;
 
     // spin
     rgb = float3(
-        dot(rgb, drawable.spin_weights.xyz),
-        dot(rgb, drawable.spin_weights.zxy),
-        dot(rgb, drawable.spin_weights.yzx));
+        dot(rgb, props.spin_weights.xyz),
+        dot(rgb, props.spin_weights.zxy),
+        dot(rgb, props.spin_weights.yzx));
 
     // saturation
     float average = (color.r + color.g + color.b) / 3.0;
-    rgb += (average - rgb) * drawable.saturation_factor;
+    rgb += (average - rgb) * props.saturation_factor;
 
     // contrast
-    rgb = (rgb - 0.5) * drawable.contrast_factor + 0.5;
+    rgb = (rgb - 0.5) * props.contrast_factor + 0.5;
 
     // brightness
-    float3 high_vec = float3(drawable.brightness_low, drawable.brightness_low, drawable.brightness_low);
-    float3 low_vec = float3(drawable.brightness_high, drawable.brightness_high, drawable.brightness_high);
+    float3 high_vec = float3(props.brightness_low, props.brightness_low, props.brightness_low);
+    float3 low_vec = float3(props.brightness_high, props.brightness_high, props.brightness_high);
 
     return half4(half3(mix(high_vec, low_vec, rgb) * color.a), color.a);
 }

include/mbgl/shaders/mtl/shader_program.hpp

@@ -13,18 +13,9 @@
 
 namespace mbgl {
 namespace shaders {
-struct AttributeInfo {
-    constexpr AttributeInfo(std::size_t index_, gfx::AttributeDataType dataType_, std::size_t id_)
-        : index(index_),
-          dataType(dataType_),
-          id(id_) {}
-    std::size_t index;
-    gfx::AttributeDataType dataType;
-    std::size_t id;
-};
 struct UniformBlockInfo {
-    constexpr UniformBlockInfo(std::size_t index_, bool vertex_, bool fragment_, std::size_t size_, std::size_t id_)
-        : index(index_),
+    constexpr UniformBlockInfo(bool vertex_, bool fragment_, std::size_t size_, std::size_t id_)
+        : index(id_),
           vertex(vertex_),
           fragment(fragment_),
           size(size_),
@@ -35,6 +26,15 @@ struct UniformBlockInfo {
     std::size_t size;
     std::size_t id;
 };
+struct AttributeInfo {
+    constexpr AttributeInfo(std::size_t index_, gfx::AttributeDataType dataType_, std::size_t id_)
+        : index(index_),
+          dataType(dataType_),
+          id(id_) {}
+    std::size_t index;
+    gfx::AttributeDataType dataType;
+    std::size_t id;
+};
 struct TextureInfo {
     constexpr TextureInfo(std::size_t index_, std::size_t id_)
         : index(index_),

include/mbgl/shaders/mtl/symbol_icon.hpp

@@ -14,21 +14,21 @@ struct ShaderSource<BuiltIn::SymbolIconShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<AttributeInfo, 6> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    float4 pos_offset [[attribute(0)]];
-    float4 data [[attribute(1)]];
-    float4 pixeloffset [[attribute(2)]];
-    float3 projected_pos [[attribute(3)]];
-    float fade_opacity [[attribute(4)]];
+    float4 pos_offset [[attribute(5)]];
+    float4 data [[attribute(6)]];
+    float4 pixeloffset [[attribute(7)]];
+    float3 projected_pos [[attribute(8)]];
+    float fade_opacity [[attribute(9)]];
 
 #if !defined(HAS_UNIFORM_u_opacity)
-    float opacity [[attribute(5)]];
+    float opacity [[attribute(10)]];
 #endif
 };
 
@@ -46,11 +46,11 @@ struct FragmentStage {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const SymbolDrawableUBO& drawable [[buffer(6)]],
-                                device const SymbolDynamicUBO& dynamic [[buffer(7)]],
-                                device const SymbolDrawablePaintUBO& paint [[buffer(8)]],
-                                device const SymbolDrawableTilePropsUBO& props [[buffer(9)]],
-                                device const SymbolDrawableInterpolateUBO& interp [[buffer(10)]]) {
+                                device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                                device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                                device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                                device const SymbolInterpolateUBO& interp [[buffer(3)]],
+                                device const SymbolEvaluatedPropsUBO& paint [[buffer(4)]]) {
 
     const float2 a_pos = vertx.pos_offset.xy;
     const float2 a_offset = vertx.pos_offset.zw;
@@ -65,18 +65,18 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float segment_angle = -vertx.projected_pos[2];
 
     float size;
-    if (!props.is_size_zoom_constant && !props.is_size_feature_constant) {
-        size = mix(a_size_min, a_size[1], props.size_t) / 128.0;
-    } else if (props.is_size_zoom_constant && !props.is_size_feature_constant) {
+    if (!tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
+        size = mix(a_size_min, a_size[1], tileprops.size_t) / 128.0;
+    } else if (tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
         size = a_size_min / 128.0;
     } else {
-        size = props.size;
+        size = tileprops.size;
     }
 
     const float4 projectedPoint = drawable.matrix * float4(a_pos, 0, 1);
     const float camera_to_anchor_distance = projectedPoint.w;
     // See comments in symbol_sdf.vertex
-    const float distance_ratio = props.pitch_with_map ?
+    const float distance_ratio = tileprops.pitch_with_map ?
         camera_to_anchor_distance / dynamic.camera_to_center_distance :
         dynamic.camera_to_center_distance / camera_to_anchor_distance;
     const float perspective_ratio = clamp(
@@ -86,7 +86,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 
     size *= perspective_ratio;
 
-    const float fontScale = props.is_text ? size / 24.0 : size;
+    const float fontScale = tileprops.is_text ? size / 24.0 : size;
 
     float symbol_rotation = 0.0;
     if (drawable.rotate_symbol) {
@@ -123,8 +123,10 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const SymbolDrawableUBO& drawable [[buffer(6)]],
-                            device const SymbolDrawablePaintUBO& paint [[buffer(8)]],
+                            device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                            device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                            device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                            device const SymbolEvaluatedPropsUBO& props [[buffer(4)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             sampler image_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -132,7 +134,7 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 #endif
 
 #if defined(HAS_UNIFORM_u_opacity)
-    const float opacity = paint.opacity * in.fade_opacity;
+    const float opacity = (tileprops.is_text ? props.text_opacity : props.icon_opacity) * in.fade_opacity;
 #else
     const float opacity = in.opacity; // fade_opacity is baked in for this case
 #endif

include/mbgl/shaders/mtl/symbol_sdf.hpp

@@ -14,33 +14,33 @@ struct ShaderSource<BuiltIn::SymbolSDFIconShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<AttributeInfo, 10> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<TextureInfo, 1> textures;
 
     static constexpr auto source = R"(
 struct VertexStage {
-    float4 pos_offset [[attribute(0)]];
-    float4 data [[attribute(1)]];
-    float4 pixeloffset [[attribute(2)]];
-    float3 projected_pos [[attribute(3)]];
-    float fade_opacity [[attribute(4)]];
+    float4 pos_offset [[attribute(5)]];
+    float4 data [[attribute(6)]];
+    float4 pixeloffset [[attribute(7)]];
+    float3 projected_pos [[attribute(8)]];
+    float fade_opacity [[attribute(9)]];
 
 #if !defined(HAS_UNIFORM_u_fill_color)
-    float4 fill_color [[attribute(5)]];
+    float4 fill_color [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_color)
-    float4 halo_color [[attribute(6)]];
+    float4 halo_color [[attribute(11)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float opacity [[attribute(7)]];
+    float opacity [[attribute(12)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_width)
-    float halo_width [[attribute(8)]];
+    float halo_width [[attribute(13)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_blur)
-    float halo_blur [[attribute(9)]];
+    float halo_blur [[attribute(14)]];
 #endif
 };
 
@@ -71,11 +71,11 @@ struct FragmentStage {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const SymbolDrawableUBO& drawable [[buffer(10)]],
-                                device const SymbolDynamicUBO& dynamic [[buffer(11)]],
-                                device const SymbolDrawablePaintUBO& paint [[buffer(12)]],
-                                device const SymbolDrawableTilePropsUBO& props [[buffer(13)]],
-                                device const SymbolDrawableInterpolateUBO& interp [[buffer(14)]]) {
+                                device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                                device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                                device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                                device const SymbolInterpolateUBO& interp [[buffer(3)]],
+                                device const SymbolEvaluatedPropsUBO& props [[buffer(4)]]) {
 
     const float2 a_pos = vertx.pos_offset.xy;
     const float2 a_offset = vertx.pos_offset.zw;
@@ -89,12 +89,12 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float segment_angle = -vertx.projected_pos[2];
 
     float size;
-    if (!props.is_size_zoom_constant && !props.is_size_feature_constant) {
-        size = mix(a_size_min, a_size[1], props.size_t) / 128.0;
-    } else if (props.is_size_zoom_constant && !props.is_size_feature_constant) {
+    if (!tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
+        size = mix(a_size_min, a_size[1], tileprops.size_t) / 128.0;
+    } else if (tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
         size = a_size_min / 128.0;
     } else {
-        size = props.size;
+        size = tileprops.size;
     }
 
     const float4 projectedPoint = drawable.matrix * float4(a_pos, 0, 1);
@@ -105,7 +105,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     // If the label isn't pitched with the map, we do layout in viewport space,
     // which makes labels in the distance larger relative to the features around
     // them. We counteract part of that effect by dividing by the perspective ratio.
-    const float distance_ratio = props.pitch_with_map ?
+    const float distance_ratio = tileprops.pitch_with_map ?
         camera_to_anchor_distance / dynamic.camera_to_center_distance :
         dynamic.camera_to_center_distance / camera_to_anchor_distance;
     const float perspective_ratio = clamp(
@@ -115,7 +115,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 
     size *= perspective_ratio;
 
-    const float fontScale = props.is_text ? size / 24.0 : size;
+    const float fontScale = tileprops.is_text ? size / 24.0 : size;
 
     float symbol_rotation = 0.0;
     if (drawable.rotate_symbol) {
@@ -165,10 +165,10 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const SymbolDrawableUBO& drawable [[buffer(10)]],
-                            device const SymbolDynamicUBO& dynamic [[buffer(11)]],
-                            device const SymbolDrawablePaintUBO& paint [[buffer(12)]],
-                            device const SymbolDrawableTilePropsUBO& props [[buffer(13)]],
+                            device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                            device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                            device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                            device const SymbolEvaluatedPropsUBO& props [[buffer(4)]],
                             texture2d<float, access::sample> image [[texture(0)]],
                             sampler image_sampler [[sampler(0)]]) {
 #if defined(OVERDRAW_INSPECTOR)
@@ -176,36 +176,36 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 #endif
 
 #if defined(HAS_UNIFORM_u_fill_color)
-    const half4 fill_color = half4(paint.fill_color);
+    const half4 fill_color = half4(tileprops.is_text ? props.text_fill_color : props.icon_fill_color);
 #else
     const half4 fill_color = in.fill_color;
 #endif
 #if defined(HAS_UNIFORM_u_halo_color)
-    const half4 halo_color = half4(paint.halo_color);
+    const half4 halo_color = half4(tileprops.is_text ? props.text_halo_color : props.icon_halo_color);
 #else
     const half4 halo_color = in.halo_color;
 #endif
 #if defined(HAS_UNIFORM_u_opacity)
-    const float opacity = paint.opacity;
+    const float opacity = tileprops.is_text ? props.text_opacity : props.icon_opacity;
 #else
     const float opacity = in.opacity;
 #endif
 #if defined(HAS_UNIFORM_u_halo_width)
-    const float halo_width = paint.halo_width;
+    const float halo_width = tileprops.is_text ? props.text_halo_width : props.icon_halo_width;
 #else
     const float halo_width = in.halo_width;
 #endif
 #if defined(HAS_UNIFORM_u_halo_blur)
-    const float halo_blur = paint.halo_blur;
+    const float halo_blur = tileprops.is_text ? props.text_halo_blur : props.icon_halo_blur;
 #else
     const float halo_blur = in.halo_blur;
 #endif
 
     const float EDGE_GAMMA = 0.105 / DEVICE_PIXEL_RATIO;
     const float fontGamma = in.fontScale * drawable.gamma_scale;
-    const half4 color = props.is_halo ? halo_color : fill_color;
-    const float gamma = ((props.is_halo ? (halo_blur * 1.19 / SDF_PX) : 0) + EDGE_GAMMA) / fontGamma;
-    const float buff = props.is_halo ? (6.0 - halo_width / in.fontScale) / SDF_PX : (256.0 - 64.0) / 256.0;
+    const half4 color = tileprops.is_halo ? halo_color : fill_color;
+    const float gamma = ((tileprops.is_halo ? (halo_blur * 1.19 / SDF_PX) : 0) + EDGE_GAMMA) / fontGamma;
+    const float buff = tileprops.is_halo ? (6.0 - halo_width / in.fontScale) / SDF_PX : (256.0 - 64.0) / 256.0;
     const float dist = image.sample(image_sampler, float2(in.tex)).a;
     const float gamma_scaled = gamma * in.gamma_scale;
     const float alpha = smoothstep(buff - gamma_scaled, buff + gamma_scaled, dist);

include/mbgl/shaders/mtl/symbol_text_and_icon.hpp

@@ -14,9 +14,9 @@ struct ShaderSource<BuiltIn::SymbolTextAndIconShader, gfx::Backend::Type::Metal>
     static constexpr auto vertexMainFunction = "vertexMain";
     static constexpr auto fragmentMainFunction = "fragmentMain";
 
+    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<AttributeInfo, 9> attributes;
     static constexpr std::array<AttributeInfo, 0> instanceAttributes{};
-    static const std::array<UniformBlockInfo, 5> uniforms;
     static const std::array<TextureInfo, 2> textures;
 
     static constexpr auto source = R"(
@@ -24,25 +24,25 @@ struct ShaderSource<BuiltIn::SymbolTextAndIconShader, gfx::Backend::Type::Metal>
 #define ICON 0.0
 
 struct VertexStage {
-    float4 pos_offset [[attribute(0)]];
-    float4 data [[attribute(1)]];
-    float3 projected_pos [[attribute(2)]];
-    float fade_opacity [[attribute(3)]];
+    float4 pos_offset [[attribute(5)]];
+    float4 data [[attribute(6)]];
+    float3 projected_pos [[attribute(7)]];
+    float fade_opacity [[attribute(8)]];
 
 #if !defined(HAS_UNIFORM_u_fill_color)
-    float4 fill_color [[attribute(4)]];
+    float4 fill_color [[attribute(9)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_color)
-    float4 halo_color [[attribute(5)]];
+    float4 halo_color [[attribute(10)]];
 #endif
 #if !defined(HAS_UNIFORM_u_opacity)
-    float opacity [[attribute(6)]];
+    float opacity [[attribute(11)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_width)
-    float halo_width [[attribute(7)]];
+    float halo_width [[attribute(12)]];
 #endif
 #if !defined(HAS_UNIFORM_u_halo_blur)
-    float halo_blur [[attribute(8)]];
+    float halo_blur [[attribute(13)]];
 #endif
 };
 
@@ -75,11 +75,11 @@ struct FragmentStage {
 };
 
 FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
-                                device const SymbolDrawableUBO& drawable [[buffer(9)]],
-                                device const SymbolDynamicUBO& dynamic [[buffer(10)]],
-                                device const SymbolDrawablePaintUBO& paint [[buffer(11)]],
-                                device const SymbolDrawableTilePropsUBO& props [[buffer(12)]],
-                                device const SymbolDrawableInterpolateUBO& interp [[buffer(13)]]) {
+                                device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                                device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                                device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                                device const SymbolInterpolateUBO& interp [[buffer(3)]],
+                                device const SymbolEvaluatedPropsUBO& props [[buffer(4)]]) {
 
     const float2 a_pos = vertx.pos_offset.xy;
     const float2 a_offset = vertx.pos_offset.zw;
@@ -93,12 +93,12 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     const float segment_angle = -vertx.projected_pos[2];
 
     float size;
-    if (!props.is_size_zoom_constant && !props.is_size_feature_constant) {
-        size = mix(a_size_min, a_size[1], props.size_t) / 128.0;
-    } else if (props.is_size_zoom_constant && !props.is_size_feature_constant) {
+    if (!tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
+        size = mix(a_size_min, a_size[1], tileprops.size_t) / 128.0;
+    } else if (tileprops.is_size_zoom_constant && !tileprops.is_size_feature_constant) {
         size = a_size_min / 128.0;
     } else {
-        size = props.size;
+        size = tileprops.size;
     }
 
     const float4 projectedPoint = drawable.matrix * float4(a_pos, 0, 1);
@@ -109,7 +109,7 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
     // If the label isn't pitched with the map, we do layout in viewport space,
     // which makes labels in the distance larger relative to the features around
     // them. We counteract part of that effect by dividing by the perspective ratio.
-    const float distance_ratio = props.pitch_with_map ?
+    const float distance_ratio = tileprops.pitch_with_map ?
         camera_to_anchor_distance / dynamic.camera_to_center_distance :
         dynamic.camera_to_center_distance / camera_to_anchor_distance;
     const float perspective_ratio = clamp(
@@ -175,10 +175,10 @@ FragmentStage vertex vertexMain(thread const VertexStage vertx [[stage_in]],
 }
 
 half4 fragment fragmentMain(FragmentStage in [[stage_in]],
-                            device const SymbolDrawableUBO& drawable [[buffer(9)]],
-                            device const SymbolDynamicUBO& dynamic [[buffer(10)]],
-                            device const SymbolDrawablePaintUBO& paint [[buffer(11)]],
-                            device const SymbolDrawableTilePropsUBO& props [[buffer(12)]],
+                            device const SymbolDynamicUBO& dynamic [[buffer(0)]],
+                            device const SymbolDrawableUBO& drawable [[buffer(1)]],
+                            device const SymbolTilePropsUBO& tileprops [[buffer(2)]],
+                            device const SymbolEvaluatedPropsUBO& props [[buffer(4)]],
                             texture2d<float, access::sample> glyph_image [[texture(0)]],
                             texture2d<float, access::sample> icon_image [[texture(1)]],
                             sampler glyph_sampler [[sampler(0)]],
@@ -188,27 +188,27 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
 #endif
 
 #if defined(HAS_UNIFORM_u_fill_color)
-    const half4 fill_color = half4(paint.fill_color);
+    const half4 fill_color = half4(tileprops.is_text ? props.text_fill_color : props.icon_fill_color);
 #else
     const half4 fill_color = in.fill_color;
 #endif
 #if defined(HAS_UNIFORM_u_halo_color)
-    const half4 halo_color = half4(paint.halo_color);
+    const half4 halo_color = half4(tileprops.is_text ? props.text_halo_color : props.icon_halo_color);
 #else
     const half4 halo_color = in.halo_color;
 #endif
 #if defined(HAS_UNIFORM_u_opacity)
-    const half opacity = half(paint.opacity);
+    const half opacity = half(tileprops.is_text ? props.text_opacity : props.icon_opacity);
 #else
     const half opacity = in.opacity;
 #endif
 #if defined(HAS_UNIFORM_u_halo_width)
-    const half halo_width = half(paint.halo_width);
+    const half halo_width = half(tileprops.is_text ? props.text_halo_width : props.icon_halo_width);
 #else
     const half halo_width = in.halo_width;
 #endif
 #if defined(HAS_UNIFORM_u_halo_blur)
-    const half halo_blur = half(paint.halo_blur);
+    const half halo_blur = half(tileprops.is_text ? props.text_halo_blur : props.icon_halo_blur);
 #else
     const half halo_blur = in.halo_blur;
 #endif
@@ -219,10 +219,10 @@ half4 fragment fragmentMain(FragmentStage in [[stage_in]],
     }
 
     const float EDGE_GAMMA = 0.105 / DEVICE_PIXEL_RATIO;
-    const half4 color = props.is_halo ? halo_color : fill_color;
+    const half4 color = tileprops.is_halo ? halo_color : fill_color;
     const float fontGamma = in.fontScale * drawable.gamma_scale;
-    const float gamma = ((props.is_halo ? (halo_blur * 1.19 / SDF_PX) : 0) + EDGE_GAMMA) / fontGamma;
-    const float buff = props.is_halo ? (6.0 - halo_width / in.fontScale) / SDF_PX : (256.0 - 64.0) / 256.0;
+    const float gamma = ((tileprops.is_halo ? (halo_blur * 1.19 / SDF_PX) : 0) + EDGE_GAMMA) / fontGamma;
+    const float buff = tileprops.is_halo ? (6.0 - halo_width / in.fontScale) / SDF_PX : (256.0 - 64.0) / 256.0;
     const float dist = glyph_image.sample(glyph_sampler, float2(in.tex)).a;
     const float gamma_scaled = gamma * in.gamma_scale;
     const float alpha = smoothstep(buff - gamma_scaled, buff + gamma_scaled, dist);

include/mbgl/shaders/mtl/widevector.hpp

@@ -14,14 +14,14 @@ struct ShaderSource<BuiltIn::WideVectorShader, gfx::Backend::Type::Metal> {
     static constexpr auto vertexMainFunction = "vertexTri_wideVecPerf";
     static constexpr auto fragmentMainFunction = "fragmentTri_wideVecPerf";
 
-    static constexpr std::array<AttributeInfo, 3> attributes{
-        AttributeInfo{0, gfx::AttributeDataType::Float3, idWideVectorScreenPos},
-        AttributeInfo{1, gfx::AttributeDataType::Float4, idWideVectorColor},
-        AttributeInfo{2, gfx::AttributeDataType::Int, idWideVectorIndex}};
     static constexpr std::array<UniformBlockInfo, 2> uniforms{
-        UniformBlockInfo{3, true, false, sizeof(WideVectorUniformsUBO), idWideVectorUniformsUBO},
-        UniformBlockInfo{4, true, false, sizeof(WideVectorUniformWideVecUBO), idWideVectorUniformWideVecUBO},
+        UniformBlockInfo{true, false, sizeof(WideVectorUniformsUBO), idWideVectorUniformsUBO},
+        UniformBlockInfo{true, false, sizeof(WideVectorUniformWideVecUBO), idWideVectorUniformWideVecUBO},
     };
+    static constexpr std::array<AttributeInfo, 3> attributes{
+        AttributeInfo{wideVectorUBOCount + 0, gfx::AttributeDataType::Float3, idWideVectorScreenPos},
+        AttributeInfo{wideVectorUBOCount + 1, gfx::AttributeDataType::Float4, idWideVectorColor},
+        AttributeInfo{wideVectorUBOCount + 2, gfx::AttributeDataType::Int, idWideVectorIndex}};
     static constexpr std::array<AttributeInfo, 4> instanceAttributes{
         AttributeInfo{5, gfx::AttributeDataType::Float3, idWideVectorInstanceCenter},
         AttributeInfo{5, gfx::AttributeDataType::Float4, idWideVectorInstanceColor},
@@ -112,9 +112,9 @@ typedef struct
 struct VertexTriWideVecB
 {
     // x, y offset around the center
-    float3 screenPos [[attribute(0)]];
-    float4 color [[attribute(1)]];
-    int index [[attribute(2)]];
+    float3 screenPos [[attribute(2)]];
+    float4 color [[attribute(3)]];
+    int index [[attribute(4)]];
 };
 
 // Wide vector vertex passed to fragment shader (new version)
@@ -221,8 +221,8 @@ constant constexpr float4 discardPt(0,0,-1e6,NAN);
 // Performance version of wide vector shader
 vertex ProjVertexTriWideVecPerf vertexTri_wideVecPerf(
           thread const VertexTriWideVecB vert [[ stage_in ]],
-          constant Uniforms &uniforms [[ buffer(3) ]],
-          constant UniformWideVec &wideVec [[ buffer(4) ]],
+          constant Uniforms &uniforms [[ buffer(0) ]],
+          constant UniformWideVec &wideVec [[ buffer(1) ]],
           uint instanceID [[ instance_id ]],
           constant VertexTriWideVecInstance *wideVecInsts   [[ buffer(5) ]])
 {
@@ -563,7 +563,7 @@ vertex ProjVertexTriWideVecPerf vertexTri_wideVecPerf(
 // Fragment shader that takes the back of the globe into account
 fragment float4 fragmentTri_wideVecPerf(
             ProjVertexTriWideVecPerf vert [[stage_in]],
-            constant Uniforms &uniforms [[ buffer(3) ]])
+            constant Uniforms &uniforms [[ buffer(0) ]])
 {
     float patternAlpha = 1.0;
 

include/mbgl/shaders/raster_layer_ubo.hpp

@@ -7,6 +7,10 @@ namespace shaders {
 
 struct alignas(16) RasterDrawableUBO {
     std::array<float, 4 * 4> matrix;
+};
+static_assert(sizeof(RasterDrawableUBO) == 64);
+
+struct alignas(16) RasterEvaluatedPropsUBO {
     std::array<float, 4> spin_weights;
     std::array<float, 2> tl_parent;
     float scale_parent;
@@ -19,11 +23,11 @@ struct alignas(16) RasterDrawableUBO {
     float contrast_factor;
     float pad1, pad2;
 };
-static_assert(sizeof(RasterDrawableUBO) == 128);
-static_assert(sizeof(RasterDrawableUBO) % 16 == 0);
+static_assert(sizeof(RasterEvaluatedPropsUBO) == 64);
 
 enum {
     idRasterDrawableUBO,
+    idRasterEvaluatedPropsUBO,
     rasterUBOCount
 };
 

include/mbgl/shaders/shader_defines.hpp

@@ -34,19 +34,12 @@ static constexpr auto maxUBOCountPerShader = std::max({static_cast<size_t>(backg
                                                        static_cast<size_t>(customSymbolUBOCount),
                                                        static_cast<size_t>(debugUBOCount),
                                                        static_cast<size_t>(fillUBOCount),
-                                                       static_cast<size_t>(fillOutlineUBOCount),
-                                                       static_cast<size_t>(fillPatternUBOCount),
-                                                       static_cast<size_t>(fillOutlinePatternUBOCount),
-                                                       static_cast<size_t>(fillOutlineTriangulatedUBOCount),
                                                        static_cast<size_t>(fillExtrusionUBOCount),
                                                        static_cast<size_t>(heatmapUBOCount),
                                                        static_cast<size_t>(heatmapTextureUBOCount),
                                                        static_cast<size_t>(hillshadeUBOCount),
                                                        static_cast<size_t>(hillshadePrepareUBOCount),
                                                        static_cast<size_t>(lineUBOCount),
-                                                       static_cast<size_t>(lineGradientUBOCount),
-                                                       static_cast<size_t>(linePatternUBOCount),
-                                                       static_cast<size_t>(lineSDFUBOCount),
                                                        static_cast<size_t>(rasterUBOCount),
                                                        static_cast<size_t>(symbolUBOCount),
                                                        static_cast<size_t>(wideVectorUBOCount)});

include/mbgl/shaders/symbol_layer_ubo.hpp

@@ -5,31 +5,15 @@
 namespace mbgl {
 namespace shaders {
 
-/// Evaluated properties that depend on the tile
-struct alignas(16) SymbolDrawableTilePropsUBO {
-    /*  0 */ /*bool*/ int is_text;
-    /*  4 */ /*bool*/ int is_halo;
-    /*  8 */ /*bool*/ int pitch_with_map;
-    /* 12 */ /*bool*/ int is_size_zoom_constant;
-    /* 16 */ /*bool*/ int is_size_feature_constant;
-    /* 20 */ float size_t;
-    /* 24 */ float size;
-    /* 28 */ float padding;
-    /* 32 */
+/// Dynamic UBO
+struct alignas(16) SymbolDynamicUBO {
+    /* 0 */ float fade_change;
+    /* 4 */ float camera_to_center_distance;
+    /* 8 */ float aspect_ratio;
+    /* 12 */ float pad;
+    /* 16 */
 };
-static_assert(sizeof(SymbolDrawableTilePropsUBO) == 2 * 16);
-
-/// Attribute interpolations
-struct alignas(16) SymbolDrawableInterpolateUBO {
-    /*  0 */ float fill_color_t;
-    /*  4 */ float halo_color_t;
-    /*  8 */ float opacity_t;
-    /* 12 */ float halo_width_t;
-    /* 16 */ float halo_blur_t;
-    /* 20 */ float pad1, pad2, pad3;
-    /* 32 */
-};
-static_assert(sizeof(SymbolDrawableInterpolateUBO) == 32);
+static_assert(sizeof(SymbolDynamicUBO) == 16);
 
 struct alignas(16) SymbolDrawableUBO {
     /*   0 */ std::array<float, 4 * 4> matrix;
@@ -47,34 +31,56 @@ struct alignas(16) SymbolDrawableUBO {
 };
 static_assert(sizeof(SymbolDrawableUBO) == 14 * 16);
 
-/// Dynamic UBO
-struct alignas(16) SymbolDynamicUBO {
-    /* 0 */ float fade_change;
-    /* 4 */ float camera_to_center_distance;
-    /* 8 */ float aspect_ratio;
-    /* 12 */ float pad;
-    /* 16 */
+/// Evaluated properties that depend on the tile
+struct alignas(16) SymbolTilePropsUBO {
+    /*  0 */ /*bool*/ int is_text;
+    /*  4 */ /*bool*/ int is_halo;
+    /*  8 */ /*bool*/ int pitch_with_map;
+    /* 12 */ /*bool*/ int is_size_zoom_constant;
+    /* 16 */ /*bool*/ int is_size_feature_constant;
+    /* 20 */ float size_t;
+    /* 24 */ float size;
+    /* 28 */ float padding;
+    /* 32 */
 };
-static_assert(sizeof(SymbolDynamicUBO) == 16);
+static_assert(sizeof(SymbolTilePropsUBO) == 2 * 16);
+
+/// Attribute interpolations
+struct alignas(16) SymbolInterpolateUBO {
+    /*  0 */ float fill_color_t;
+    /*  4 */ float halo_color_t;
+    /*  8 */ float opacity_t;
+    /* 12 */ float halo_width_t;
+    /* 16 */ float halo_blur_t;
+    /* 20 */ float pad1, pad2, pad3;
+    /* 32 */
+};
+static_assert(sizeof(SymbolInterpolateUBO) == 32);
 
 /// Evaluated properties that do not depend on the tile
-struct alignas(16) SymbolDrawablePaintUBO {
-    /*  0 */ Color fill_color;
-    /* 16 */ Color halo_color;
-    /* 32 */ float opacity;
-    /* 36 */ float halo_width;
-    /* 40 */ float halo_blur;
-    /* 44 */ float padding;
-    /* 48 */
+struct alignas(16) SymbolEvaluatedPropsUBO {
+    /*  0 */ Color text_fill_color;
+    /* 16 */ Color text_halo_color;
+    /* 32 */ float text_opacity;
+    /* 36 */ float text_halo_width;
+    /* 40 */ float text_halo_blur;
+    /* 44 */ float pad1;
+    /* 48 */ Color icon_fill_color;
+    /* 64 */ Color icon_halo_color;
+    /* 80 */ float icon_opacity;
+    /* 84 */ float icon_halo_width;
+    /* 88 */ float icon_halo_blur;
+    /* 92 */ float pad2;
+    /* 96 */
 };
-static_assert(sizeof(SymbolDrawablePaintUBO) == 3 * 16);
+static_assert(sizeof(SymbolEvaluatedPropsUBO) == 6 * 16);
 
 enum {
-    idSymbolDrawableUBO,
     idSymbolDynamicUBO,
-    idSymbolDrawablePaintUBO,
-    idSymbolDrawableTilePropsUBO,
-    idSymbolDrawableInterpolateUBO,
+    idSymbolDrawableUBO,
+    idSymbolTilePropsUBO,
+    idSymbolInterpolateUBO,
+    idSymbolEvaluatedPropsUBO,
     symbolUBOCount
 };
 

shaders/drawable.background.fragment.glsl

@@ -1,10 +1,11 @@
 layout (std140) uniform BackgroundLayerUBO {
     highp vec4 u_color;
-    highp vec4 u_opacity_pad3;
+    highp float u_opacity;
+    highp float layer_pad1, layer_pad2, layer_pad3;
 };
 
 void main() {
-    fragColor = u_color * u_opacity_pad3.x;
+    fragColor = u_color * u_opacity;
 #ifdef OVERDRAW_INSPECTOR
     fragColor = vec4(1.0);
 #endif

shaders/drawable.background_pattern.fragment.glsl

@@ -1,4 +1,4 @@
-layout (std140) uniform BackgroundLayerUBO {
+layout (std140) uniform BackgroundPatternLayerUBO {
     highp vec2 u_pattern_tl_a;
     highp vec2 u_pattern_br_a;
     highp vec2 u_pattern_tl_b;
@@ -6,14 +6,11 @@ layout (std140) uniform BackgroundLayerUBO {
     highp vec2 u_texsize;
     highp vec2 u_pattern_size_a;
     highp vec2 u_pattern_size_b;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_tile_units_to_pixels;
     highp float u_scale_a;
     highp float u_scale_b;
     highp float u_mix;
     highp float u_opacity;
-    highp float pad;
+    highp float layer_pad1, layer_pad2;
 };
 
 uniform sampler2D u_image;

shaders/drawable.background_pattern.vertex.glsl

@@ -1,7 +1,11 @@
-layout (std140) uniform BackgroundDrawableUBO {
+layout (std140) uniform BackgroundPatternDrawableUBO {
     highp mat4 u_matrix;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_tile_units_to_pixels;
+    highp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
-layout (std140) uniform BackgroundLayerUBO {
+layout (std140) uniform BackgroundPatternLayerUBO {
     highp vec2 u_pattern_tl_a;
     highp vec2 u_pattern_br_a;
     highp vec2 u_pattern_tl_b;
@@ -9,14 +13,11 @@ layout (std140) uniform BackgroundLayerUBO {
     highp vec2 u_texsize;
     highp vec2 u_pattern_size_a;
     highp vec2 u_pattern_size_b;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_tile_units_to_pixels;
     highp float u_scale_a;
     highp float u_scale_b;
     highp float u_mix;
     highp float u_opacity;
-    highp float pad;
+    highp float layer_pad1, layer_pad2;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.circle.fragment.glsl

@@ -10,7 +10,7 @@ layout (std140) uniform CircleEvaluatedPropsUBO {
     lowp float u_stroke_opacity;
     bool u_scale_with_map;
     bool u_pitch_with_map;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 #pragma mapbox: define highp vec4 color

shaders/drawable.circle.vertex.glsl

@@ -4,13 +4,13 @@ out vec3 v_data;
 layout (std140) uniform CircleDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_extrude_scale;
-    lowp vec2 pad2_;
+    lowp vec2 drawable_pad1;
 };
 
 layout (std140) uniform CirclePaintParamsUBO {
     highp float u_camera_to_center_distance;
-    lowp float pad3_;
-    lowp vec2 pad4_;
+    lowp float params_pad1;
+    lowp vec2 params_pad2;
 };
 
 layout (std140) uniform CircleEvaluatedPropsUBO {
@@ -23,7 +23,7 @@ layout (std140) uniform CircleEvaluatedPropsUBO {
     lowp float u_stroke_opacity;
     bool u_scale_with_map;
     bool u_pitch_with_map;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 layout (std140) uniform CircleInterpolateUBO {
@@ -34,7 +34,7 @@ layout (std140) uniform CircleInterpolateUBO {
     lowp float u_stroke_color_t;
     lowp float u_stroke_width_t;
     lowp float u_stroke_opacity_t;
-    lowp float pad1_;
+    lowp float interp_pad1;
 };
 
 #pragma mapbox: define highp vec4 color

shaders/drawable.custom.symbol_icon.vertex.glsl

@@ -13,7 +13,7 @@ layout(std140) uniform CustomSymbolIconParametersUBO {
     bool u_pitch_with_map;
     highp float u_camera_to_center_distance;
     highp float u_aspect_ratio;
-    highp float pad0, pad1, pad3;
+    highp float params_pad1, params_pad2, params_pad3;
 };
 
 out vec2 v_tex;

shaders/drawable.fill.fragment.glsl

@@ -1,14 +1,15 @@
-layout (std140) uniform FillEvaluatedPropsUBO {
-    highp vec4 u_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
 layout (std140) uniform FillInterpolateUBO {
     highp float u_color_t;
     highp float u_opacity_t;
-    highp float pad_interp_1, pad_interp_2;
+    highp float interp_pad1, interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 #pragma mapbox: define highp vec4 color

shaders/drawable.fill.vertex.glsl

@@ -1,17 +1,18 @@
 layout (std140) uniform FillDrawableUBO {
     highp mat4 u_matrix;
 };
-layout (std140) uniform FillEvaluatedPropsUBO {
-    highp vec4 u_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
 layout (std140) uniform FillInterpolateUBO {
     highp float u_color_t;
     highp float u_opacity_t;
-    highp float pad_interp_1, pad_interp_2;
+    highp float interp_pad1, interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.fill_extrusion.vertex.glsl

@@ -2,7 +2,29 @@ layout (location = 0) in vec2 a_pos;
 layout (location = 1) in vec4 a_normal_ed;
 out vec4 v_color;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -12,31 +34,8 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
-};
-
 #pragma mapbox: define highp float base
 #pragma mapbox: define highp float height
 #pragma mapbox: define highp vec4 color

shaders/drawable.fill_extrusion_pattern.fragment.glsl

@@ -2,7 +2,29 @@ in vec2 v_pos_a;
 in vec2 v_pos_b;
 in vec4 v_lighting;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -12,29 +34,7 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
-};
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
 
 uniform sampler2D u_image;

shaders/drawable.fill_extrusion_pattern.vertex.glsl

@@ -5,7 +5,29 @@ out vec2 v_pos_a;
 out vec2 v_pos_b;
 out vec4 v_lighting;
 
-layout (std140) uniform FillExtrusionDrawableTilePropsUBO {
+layout (std140) uniform FillExtrusionDrawableUBO {
+    highp mat4 u_matrix;
+    highp vec4 u_scale;
+    highp vec2 u_texsize;
+    highp vec2 u_pixel_coord_upper;
+    highp vec2 u_pixel_coord_lower;
+    highp float u_height_factor;
+    highp float drawable_pad1;
+};
+layout (std140) uniform FillExtrusionPropsUBO {
+    highp vec4 u_color;
+    highp vec3 u_lightcolor;
+    highp float props_pad1;
+    highp vec3 u_lightpos;
+    highp float u_base;
+    highp float u_height;
+    highp float u_lightintensity;
+    highp float u_vertical_gradient;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float props_pad2, props_pad3, props_pad4;
+};
+layout (std140) uniform FillExtrusionTilePropsUBO {
     highp vec4 u_pattern_from;
     highp vec4 u_pattern_to;
 };
@@ -15,29 +37,7 @@ layout (std140) uniform FillExtrusionInterpolateUBO {
     highp float u_color_t;
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
-    highp float u_pad_interp1, u_pad_interp2, u_pad_interp3;
-};
-layout (std140) uniform FillExtrusionDrawableUBO {
-    highp mat4 u_matrix;
-    highp vec4 u_scale;
-    highp vec2 u_texsize;
-    highp vec2 u_pixel_coord_upper;
-    highp vec2 u_pixel_coord_lower;
-    highp float u_height_factor;
-    highp float u_pad_drawable;
-};
-layout (std140) uniform FillExtrusionDrawablePropsUBO {
-    highp vec4 u_color;
-    highp vec3 u_lightcolor;
-    highp float u_pad1;
-    highp vec3 u_lightpos;
-    highp float u_base;
-    highp float u_height;
-    highp float u_lightintensity;
-    highp float u_vertical_gradient;
-    highp float u_opacity;
-    highp float u_fade;
-    highp float u_pad_props2, u_pad_props3, u_pad_props4;
+    highp float interp_pad1, interp_pad2, interp_pad3;
 };
 
 #pragma mapbox: define lowp float base

shaders/drawable.fill_outline.fragment.glsl

@@ -1,15 +1,16 @@
-layout (std140) uniform FillOutlineEvaluatedPropsUBO {
-    highp vec4 u_outline_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
-};
 layout (std140) uniform FillOutlineInterpolateUBO {
     highp float u_outline_color_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
-    highp float u_padding_interp2;
+    highp float interp_pad1;
+    highp float interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 in vec2 v_pos;

shaders/drawable.fill_outline.vertex.glsl

@@ -1,20 +1,21 @@
 layout (std140) uniform FillOutlineDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
-    highp vec2 pad;
-};
-layout (std140) uniform FillOutlineEvaluatedPropsUBO {
-    highp vec4 u_outline_color;
-    highp float u_opacity;
-    highp float padding_props1;
-    highp float padding_props2;
-    highp float padding_props3;
+    highp vec2 drawable_pad1;
 };
 layout (std140) uniform FillOutlineInterpolateUBO {
     highp float u_outline_color_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
-    highp float u_padding_interp2;
+    highp float interp_pad1;
+    highp float interp_pad2;
+};
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.fill_outline_pattern.fragment.glsl

@@ -6,21 +6,23 @@ layout (std140) uniform FillOutlinePatternDrawableUBO {
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
 };
-layout (std140) uniform FillOutlinePatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillOutlinePatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillOutlinePatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float pad1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillOutlinePatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 uniform sampler2D u_image;

shaders/drawable.fill_outline_pattern.vertex.glsl

@@ -6,21 +6,23 @@ layout (std140) uniform FillOutlinePatternDrawableUBO {
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
 };
-layout (std140) uniform FillOutlinePatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillOutlinePatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillOutlinePatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float pad1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillOutlinePatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.fill_outline_triangulated.fragment.glsl

@@ -1,8 +1,10 @@
-layout (std140) uniform FillOutlineTriangulatedPropertiesUBO {
+layout (std140) uniform FillEvaluatedPropsUBO {
     highp vec4 u_color;
-    lowp float u_opacity;
-    mediump float u_width;
-    highp vec2 pad1;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 in float v_width;
@@ -19,7 +21,7 @@ void main() {
     float blur2 = (1.0 / DEVICE_PIXEL_RATIO) * v_gamma_scale;
     float alpha = clamp(min(dist + blur2, v_width - dist) / blur2, 0.0, 1.0);
 
-    fragColor = u_color * (alpha * u_opacity);
+    fragColor = u_outline_color * (alpha * u_opacity);
 
 #ifdef OVERDRAW_INSPECTOR
     fragColor = vec4(1.0);

shaders/drawable.fill_outline_triangulated.vertex.glsl

@@ -13,14 +13,15 @@ layout (std140) uniform FillOutlineTriangulatedDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_units_to_pixels;
     mediump float u_ratio;
-    lowp float pad0;
+    lowp float drawable_pad1;
 };
-
-layout (std140) uniform FillOutlineTriangulatedPropertiesUBO {
+layout (std140) uniform FillEvaluatedPropsUBO {
     highp vec4 u_color;
-    lowp float u_opacity;
-    mediump float u_width;
-    highp vec2 pad1;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 out vec2 v_normal;

shaders/drawable.fill_pattern.fragment.glsl

@@ -4,24 +4,26 @@ layout (std140) uniform FillPatternDrawableUBO {
     highp vec2 u_pixel_coord_upper;
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
-    highp float pad1;
-    highp float pad2;
+    highp float drawable_pad1;
+    highp float drawable_pad2;
 };
-layout (std140) uniform FillPatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillPatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillPatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillPatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 uniform sampler2D u_image;

shaders/drawable.fill_pattern.vertex.glsl

@@ -4,24 +4,26 @@ layout (std140) uniform FillPatternDrawableUBO {
     highp vec2 u_pixel_coord_upper;
     highp vec2 u_pixel_coord_lower;
     highp vec2 u_texsize;
-    highp float pad1;
-    highp float pad2;
+    highp float drawable_pad1;
+    highp float drawable_pad2;
 };
-layout (std140) uniform FillPatternEvaluatedPropsUBO {
-    highp float u_opacity;
-    highp float u_fade;
-    highp float padding_props1;
-    highp float padding_props2;
+layout (std140) uniform FillPatternTilePropsUBO {
+    highp vec4 u_pattern_from;
+    highp vec4 u_pattern_to;
 };
 layout (std140) uniform FillPatternInterpolateUBO {
     highp float u_pattern_from_t;
     highp float u_pattern_to_t;
     highp float u_opacity_t;
-    highp float u_padding_interp1;
+    highp float interp_pad1;
 };
-layout (std140) uniform FillPatternTilePropsUBO {
-    highp vec4 u_pattern_from;
-    highp vec4 u_pattern_to;
+layout (std140) uniform FillEvaluatedPropsUBO {
+    highp vec4 u_color;
+    highp vec4 u_outline_color;
+    highp float u_opacity;
+    highp float u_fade;
+    highp float u_width;
+    highp float props_pad1;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.heatmap.fragment.glsl

@@ -4,7 +4,7 @@ layout (std140) uniform HeatmapEvaluatedPropsUBO {
     highp float u_weight;
     highp float u_radius;
     highp float u_intensity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 #pragma mapbox: define highp float weight

shaders/drawable.heatmap.vertex.glsl

@@ -4,21 +4,21 @@ out vec2 v_extrude;
 layout (std140) uniform HeatmapDrawableUBO {
     highp mat4 u_matrix;
     highp float u_extrude_scale;
-    lowp float pad1_;
-    lowp vec2 pad2_;
+    lowp float drawable_pad1;
+    lowp vec2 drawable_pad2;
 };
 
 layout (std140) uniform HeatmapEvaluatedPropsUBO {
     highp float u_weight;
     highp float u_radius;
     highp float u_intensity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 layout (std140) uniform HeatmapInterpolateUBO {
     lowp float u_weight_t;
     lowp float u_radius_t;
-    lowp vec2 pad3_;
+    lowp vec2 interp_pad1;
 };
 
 #pragma mapbox: define highp float weight

shaders/drawable.heatmap_texture.fragment.glsl

@@ -2,11 +2,11 @@ in vec2 v_pos;
 uniform sampler2D u_image;
 uniform sampler2D u_color_ramp;
 
-layout (std140) uniform HeatmapTextureDrawableUBO {
+layout (std140) uniform HeatmapTexturePropsUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
     highp float u_opacity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 void main() {

shaders/drawable.heatmap_texture.vertex.glsl

@@ -1,11 +1,11 @@
 layout (location = 0) in vec2 a_pos;
 out vec2 v_pos;
 
-layout (std140) uniform HeatmapTextureDrawableUBO {
+layout (std140) uniform HeatmapTexturePropsUBO {
     highp mat4 u_matrix;
     highp vec2 u_world;
     highp float u_opacity;
-    lowp float pad0_;
+    lowp float props_pad1;
 };
 
 void main() {

shaders/drawable.line.fragment.glsl

@@ -1,19 +1,7 @@
-layout (std140) uniform LineUBO {
+layout (std140) uniform LineDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LinePropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineInterpolationUBO {
@@ -23,8 +11,19 @@ layout (std140) uniform LineInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp vec2 interp_pad1;
+};
 
-    highp vec2 pad7;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 in vec2 v_width2;

shaders/drawable.line.vertex.glsl

@@ -11,25 +11,13 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineUBO {
+layout (std140) uniform LineDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LinePropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineInterpolationUBO {
@@ -39,8 +27,19 @@ layout (std140) uniform LineInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp vec2 interp_pad1;
+};
 
-    highp vec2 pad7;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;

shaders/drawable.line_gradient.fragment.glsl

@@ -1,18 +1,7 @@
-layout (std140) uniform LineGradientUBO {
+layout (std140) uniform LineGradientDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineGradientPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineGradientInterpolationUBO {
@@ -21,9 +10,20 @@ layout (std140) uniform LineGradientInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp float interp_pad1;
+    highp vec2 interp_pad2;
+};
 
-    highp float pad7;
-    highp vec2 pad8;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

shaders/drawable.line_gradient.vertex.glsl

@@ -15,24 +15,13 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineGradientUBO {
+layout (std140) uniform LineGradientDrawableUBO {
     highp mat4 u_matrix;
     mediump float u_ratio;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineGradientPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-
-    highp float pad5;
-    highp vec2 pad6;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineGradientInterpolationUBO {
@@ -41,9 +30,20 @@ layout (std140) uniform LineGradientInterpolationUBO {
     lowp float u_gapwidth_t;
     lowp float u_offset_t;
     lowp float u_width_t;
+    highp float interp_pad1;
+    highp vec2 interp_pad2;
+};
 
-    highp float pad7;
-    highp vec2 pad8;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;

shaders/drawable.line_pattern.fragment.glsl

@@ -1,4 +1,4 @@
-layout (std140) uniform LinePatternUBO {
+layout (std140) uniform LinePatternDrawableUBO {
     highp mat4 u_matrix;
     mediump vec4 u_scale;
     highp vec2 u_texsize;
@@ -6,22 +6,6 @@ layout (std140) uniform LinePatternUBO {
     highp float u_fade;
 };
 
-layout (std140) uniform LinePatternPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    lowp float u_offset;
-    mediump float u_gapwidth;
-    mediump float u_width;
-
-    highp float pad2;
-    highp vec2 pad3;
-};
-
-layout (std140) uniform LinePatternTilePropertiesUBO {
-    lowp vec4 u_pattern_from;
-    lowp vec4 u_pattern_to;
-};
-
 layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_blur_t;
     lowp float u_opacity_t;
@@ -30,8 +14,24 @@ layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_width_t;
     lowp float u_pattern_from_t;
     lowp float u_pattern_to_t;
+    highp float interp_pad1;
+};
 
-    highp float pad4;
+layout (std140) uniform LinePatternTilePropertiesUBO {
+    lowp vec4 u_pattern_from;
+    lowp vec4 u_pattern_to;
+};
+
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

shaders/drawable.line_pattern.vertex.glsl

@@ -15,10 +15,10 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LinePatternUBO {
+layout (std140) uniform LinePatternDrawableUBO {
     highp mat4 u_matrix;
     mediump vec4 u_scale;
     highp vec2 u_texsize;
@@ -26,22 +26,6 @@ layout (std140) uniform LinePatternUBO {
     highp float u_fade;
 };
 
-layout (std140) uniform LinePatternPropertiesUBO {
-    lowp float u_blur;
-    lowp float u_opacity;
-    lowp float u_offset;
-    mediump float u_gapwidth;
-    mediump float u_width;
-
-    highp float pad2;
-    highp vec2 pad3;
-};
-
-layout (std140) uniform LinePatternTilePropertiesUBO {
-    lowp vec4 u_pattern_from;
-    lowp vec4 u_pattern_to;
-};
-
 layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_blur_t;
     lowp float u_opacity_t;
@@ -50,8 +34,24 @@ layout (std140) uniform LinePatternInterpolationUBO {
     lowp float u_width_t;
     lowp float u_pattern_from_t;
     lowp float u_pattern_to_t;
+    highp float interp_pad1;
+};
 
-    highp float pad4;
+layout (std140) uniform LinePatternTilePropertiesUBO {
+    lowp vec4 u_pattern_from;
+    lowp vec4 u_pattern_to;
+};
+
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;

shaders/drawable.line_sdf.fragment.glsl

@@ -1,5 +1,5 @@
 
-layout (std140) uniform LineSDFUBO {
+layout (std140) uniform LineSDFDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_patternscale_a;
     highp vec2 u_patternscale_b;
@@ -8,20 +8,7 @@ layout (std140) uniform LineSDFUBO {
     highp float u_tex_y_b;
     highp float u_sdfgamma;
     highp float u_mix;
-    
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineSDFPropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-    lowp float u_floorwidth;
-
-    highp vec2 pad5;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineSDFInterpolationUBO {
@@ -32,8 +19,19 @@ layout (std140) uniform LineSDFInterpolationUBO {
     lowp float u_offset_t;
     lowp float u_width_t;
     lowp float u_floorwidth_t;
+    highp float interp_pad1;
+};
 
-    highp float pad6;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_image;

shaders/drawable.line_sdf.vertex.glsl

@@ -15,10 +15,10 @@ layout (location = 1) in vec4 a_data;
 
 layout (std140) uniform LineDynamicUBO {
     highp vec2 u_units_to_pixels;
-    lowp float pad0, pad1;
+    lowp float dynamic_pad1, dynamic_pad2;
 };
 
-layout (std140) uniform LineSDFUBO {
+layout (std140) uniform LineSDFDrawableUBO {
     highp mat4 u_matrix;
     highp vec2 u_patternscale_a;
     highp vec2 u_patternscale_b;
@@ -27,19 +27,7 @@ layout (std140) uniform LineSDFUBO {
     highp float u_tex_y_b;
     highp float u_sdfgamma;
     highp float u_mix;
-    lowp float pad2, pad3, pad4;
-};
-
-layout (std140) uniform LineSDFPropertiesUBO {
-    highp vec4 u_color;
-    lowp float u_blur;
-    lowp float u_opacity;
-    mediump float u_gapwidth;
-    lowp float u_offset;
-    mediump float u_width;
-    lowp float u_floorwidth;
-
-    highp vec2 pad5;
+    lowp float drawable_pad1, drawable_pad2, drawable_pad3;
 };
 
 layout (std140) uniform LineSDFInterpolationUBO {
@@ -50,8 +38,19 @@ layout (std140) uniform LineSDFInterpolationUBO {
     lowp float u_offset_t;
     lowp float u_width_t;
     lowp float u_floorwidth_t;
+    highp float interp_pad1;
+};
 
-    highp float pad6;
+layout (std140) uniform LineEvaluatedPropsUBO {
+    highp vec4 u_color;
+    lowp float u_blur;
+    lowp float u_opacity;
+    mediump float u_gapwidth;
+    lowp float u_offset;
+    mediump float u_width;
+    lowp float u_floorwidth;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 out vec2 v_normal;

shaders/drawable.raster.fragment.glsl

@@ -1,5 +1,4 @@
-layout (std140) uniform RasterDrawableUBO {
-    highp mat4 u_matrix;
+layout (std140) uniform RasterEvaluatedPropsUBO {
     highp vec3 u_spin_weights;
     highp vec2 u_tl_parent;
     highp float u_scale_parent;
@@ -10,8 +9,8 @@ layout (std140) uniform RasterDrawableUBO {
     highp float u_brightness_high;
     highp float u_saturation_factor;
     highp float u_contrast_factor;
-    highp float pad1;
-    highp float pad2;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 uniform sampler2D u_image0;
 uniform sampler2D u_image1;

shaders/drawable.raster.vertex.glsl

@@ -1,5 +1,7 @@
 layout (std140) uniform RasterDrawableUBO {
     highp mat4 u_matrix;
+};
+layout (std140) uniform RasterEvaluatedPropsUBO {
     highp vec3 u_spin_weights;
     highp vec2 u_tl_parent;
     highp float u_scale_parent;
@@ -10,8 +12,8 @@ layout (std140) uniform RasterDrawableUBO {
     highp float u_brightness_high;
     highp float u_saturation_factor;
     highp float u_contrast_factor;
-    highp float pad1;
-    highp float pad2;
+    highp float props_pad1;
+    highp float props_pad2;
 };
 
 layout (location = 0) in vec2 a_pos;

shaders/drawable.symbol_icon.fragment.glsl

@@ -1,21 +1,38 @@
 uniform sampler2D u_texture;
 
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2,interp_pad3;
+};
+
+layout (std140) uniform SymbolTilePropsUBO {
+    bool u_is_text;
+    bool u_is_halo;
+    bool u_pitch_with_map;
+    bool u_is_size_zoom_constant;
+    bool u_is_size_feature_constant;
+    highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
+    highp float u_size; // used when size is both zoom and feature constant
+    bool tileprops_pad1;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 in vec2 v_tex;
@@ -24,6 +41,8 @@ in float v_fade_opacity;
 #pragma mapbox: define lowp float opacity
 
 void main() {
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+
     #pragma mapbox: initialize lowp float opacity
 
     lowp float alpha = opacity * v_fade_opacity;

shaders/drawable.symbol_icon.vertex.glsl

@@ -4,6 +4,13 @@ layout (location = 2) in vec4 a_pixeloffset;
 layout (location = 3) in vec3 a_projected_pos;
 layout (location = 4) in float a_fade_opacity;
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -14,26 +21,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -41,16 +32,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec2 v_tex;
@@ -59,6 +65,8 @@ out float v_fade_opacity;
 #pragma mapbox: define lowp float opacity
 
 void main() {
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+
     #pragma mapbox: initialize lowp float opacity
 
     vec2 a_pos = a_pos_offset.xy;

shaders/drawable.symbol_sdf.fragment.glsl

@@ -1,5 +1,12 @@
 #define SDF_PX 8.0
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -10,26 +17,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -37,16 +28,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_texture;
@@ -61,6 +67,12 @@ in vec3 v_data1;
 #pragma mapbox: define lowp float halo_blur
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #pragma mapbox: initialize highp vec4 fill_color
     #pragma mapbox: initialize highp vec4 halo_color
     #pragma mapbox: initialize lowp float opacity

shaders/drawable.symbol_sdf.vertex.glsl

@@ -12,6 +12,13 @@ layout (location = 4) in float a_fade_opacity;
 // [ text-size(lowerZoomStop, feature),
 //   text-size(upperZoomStop, feature) ]
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -22,26 +29,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -49,16 +40,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec2 v_data0;
@@ -71,6 +77,12 @@ out vec3 v_data1;
 #pragma mapbox: define lowp float halo_blur
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #pragma mapbox: initialize highp vec4 fill_color
     #pragma mapbox: initialize highp vec4 halo_color
     #pragma mapbox: initialize lowp float opacity

shaders/drawable.symbol_text_and_icon.fragment.glsl

@@ -3,6 +3,13 @@
 #define SDF 1.0
 #define ICON 0.0
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -13,26 +20,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -40,16 +31,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2,interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 uniform sampler2D u_texture;
@@ -65,6 +71,12 @@ in vec4 v_data1;
 #pragma mapbox: define lowp float halo_blur
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #pragma mapbox: initialize highp vec4 fill_color
     #pragma mapbox: initialize highp vec4 halo_color
     #pragma mapbox: initialize lowp float opacity

shaders/drawable.symbol_text_and_icon.vertex.glsl

@@ -11,6 +11,13 @@ layout (location = 3) in float a_fade_opacity;
 // [ text-size(lowerZoomStop, feature),
 //   text-size(upperZoomStop, feature) ]
 
+layout (std140) uniform SymbolDynamicUBO {
+    highp float u_fade_change;
+    highp float u_camera_to_center_distance;
+    highp float u_aspect_ratio;
+    highp float dynamic_pad1;
+};
+
 layout (std140) uniform SymbolDrawableUBO {
     highp mat4 u_matrix;
     highp mat4 u_label_plane_matrix;
@@ -21,26 +28,10 @@ layout (std140) uniform SymbolDrawableUBO {
 
     highp float u_gamma_scale;
     bool u_rotate_symbol;
-    highp vec2 u_pad1;
+    highp vec2 drawable_pad1;
 };
 
-layout (std140) uniform SymbolDynamicUBO {
-    highp float u_fade_change;
-    highp float u_camera_to_center_distance;
-    highp float u_aspect_ratio;
-    highp float pad0;
-};
-
-layout (std140) uniform SymbolDrawablePaintUBO {
-    highp vec4 u_fill_color;
-    highp vec4 u_halo_color;
-    highp float u_opacity;
-    highp float u_halo_width;
-    highp float u_halo_blur;
-    highp float u_padding;
-};
-
-layout (std140) uniform SymbolDrawableTilePropsUBO {
+layout (std140) uniform SymbolTilePropsUBO {
     bool u_is_text;
     bool u_is_halo;
     bool u_pitch_with_map;
@@ -48,16 +39,31 @@ layout (std140) uniform SymbolDrawableTilePropsUBO {
     bool u_is_size_feature_constant;
     highp float u_size_t; // used to interpolate between zoom stops when size is a composite function
     highp float u_size; // used when size is both zoom and feature constant
-    bool u_pad3;
+    bool tileprops_pad1;
 };
 
-layout (std140) uniform SymbolDrawableInterpolateUBO {
+layout (std140) uniform SymbolInterpolateUBO {
     highp float u_fill_color_t;
     highp float u_halo_color_t;
     highp float u_opacity_t;
     highp float u_halo_width_t;
     highp float u_halo_blur_t;
-    highp float u_pad4,u_pad5,u_pad6;
+    highp float interp_pad1, interp_pad2, interp_pad3;
+};
+
+layout (std140) uniform SymbolEvaluatedPropsUBO {
+    highp vec4 u_text_fill_color;
+    highp vec4 u_text_halo_color;
+    highp float u_text_opacity;
+    highp float u_text_halo_width;
+    highp float u_text_halo_blur;
+    highp float props_pad1;
+    highp vec4 u_icon_fill_color;
+    highp vec4 u_icon_halo_color;
+    highp float u_icon_opacity;
+    highp float u_icon_halo_width;
+    highp float u_icon_halo_blur;
+    highp float props_pad2;
 };
 
 out vec4 v_data0;
@@ -70,6 +76,12 @@ out vec4 v_data1;
 #pragma mapbox: define lowp float halo_blur
 
 void main() {
+    highp vec4 u_fill_color = u_is_text ? u_text_fill_color : u_icon_fill_color;
+    highp vec4 u_halo_color = u_is_text ? u_text_halo_color : u_icon_halo_color;
+    highp float u_opacity = u_is_text ? u_text_opacity : u_icon_opacity;
+    highp float u_halo_width = u_is_text ? u_text_halo_width : u_icon_halo_width;
+    highp float u_halo_blur = u_is_text ? u_text_halo_blur : u_icon_halo_blur;
+
     #pragma mapbox: initialize highp vec4 fill_color
     #pragma mapbox: initialize highp vec4 halo_color
     #pragma mapbox: initialize lowp float opacity

src/mbgl/gl/drawable_gl.cpp

@@ -108,17 +108,9 @@ void DrawableGL::bindUniformBuffers() const {
             const auto& block = uniformBlocks.get(id);
             if (!block) continue;
             const auto& uniformBuffer = getUniformBuffers().get(id);
-            assert(uniformBuffer && "UBO missing, drawable skipped");
-            if (!uniformBuffer) {
-                using namespace std::string_literals;
-                const auto tileIDStr = getTileID() ? util::toString(*getTileID()) : "<no tile>";
-                Log::Error(Event::General,
-                           "bindUniformBuffers: UBO "s + util::toString(block->getIndex()) + " not found for " +
-                               util::toString(getID()) + " / " + getName() + " / " + tileIDStr + ". skipping.");
-                assert(false);
-                continue;
+            if (uniformBuffer) {
+                block->bindBuffer(*uniformBuffer);
             }
-            block->bindBuffer(*uniformBuffer);
         }
     }
 }
@@ -128,7 +120,9 @@ void DrawableGL::unbindUniformBuffers() const {
         const auto& uniformBlocks = shader->getUniformBlocks();
         for (size_t id = 0; id < uniformBlocks.allocatedSize(); id++) {
             const auto& block = uniformBlocks.get(id);
-            if (block) {
+            if (!block) continue;
+            const auto& uniformBuffer = getUniformBuffers().get(id);
+            if (uniformBuffer) {
                 block->unbindBuffer();
             }
         }