[core] Fix fill layer z-fighting

Hand-ports b05e5ddd34
2017-09-08 13:12:53 -07:00
parent 73e9ba1439
commit bb8dd4705c
1 changed files with 3 additions and 1 deletions
--- a/src/mbgl/renderer/painter_fill.cpp
+++ b/src/mbgl/renderer/painter_fill.cpp
@@ -89,7 +89,9 @@ void Painter::renderFill(PaintParameters& parameters,
            program.get(properties).draw(
                context,
                drawMode,
-                depthModeForSublayer(sublayer, gl::DepthMode::ReadWrite),
+                depthModeForSublayer(sublayer, pass == RenderPass::Opaque
+                    ? gl::DepthMode::ReadWrite
+                    : gl::DepthMode::ReadOnly),
                stencilModeForClipping(tile.clip),
                colorModeForRenderPass(),
                FillProgram::UniformValues {