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MapLibreParticleLab/shaders/drawable.background_pattern.fragment.glsl
Alex Cristici cca3adb375 Layer group uniforms (#2247)
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
2024-04-18 14:22:11 +03:00

36 lines
976 B
GLSL

layout (std140) uniform BackgroundPatternLayerUBO {
highp vec2 u_pattern_tl_a;
highp vec2 u_pattern_br_a;
highp vec2 u_pattern_tl_b;
highp vec2 u_pattern_br_b;
highp vec2 u_texsize;
highp vec2 u_pattern_size_a;
highp vec2 u_pattern_size_b;
highp float u_scale_a;
highp float u_scale_b;
highp float u_mix;
highp float u_opacity;
highp float layer_pad1, layer_pad2;
};
uniform sampler2D u_image;
in mediump vec2 v_pos_a;
in mediump vec2 v_pos_b;
void main() {
vec2 imagecoord = mod(v_pos_a, 1.0);
vec2 pos = mix(u_pattern_tl_a / u_texsize, u_pattern_br_a / u_texsize, imagecoord);
vec4 color1 = texture(u_image, pos);
vec2 imagecoord_b = mod(v_pos_b, 1.0);
vec2 pos2 = mix(u_pattern_tl_b / u_texsize, u_pattern_br_b / u_texsize, imagecoord_b);
vec4 color2 = texture(u_image, pos2);
fragColor = mix(color1, color2, u_mix) * u_opacity;
#ifdef OVERDRAW_INSPECTOR
fragColor = vec4(1.0);
#endif
}