70 lines
654 B
GLSL
70 lines
654 B
GLSL
#version {{version}}
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#extension GL_GOOGLE_include_directive : enable
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precision highp float;
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uniform vec2 uFramebufferSize;
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uniform vec2 uTileSize;
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uniform vec2 uViewBoxOrigin;
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in vec2 aTessCoord;
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in vec2 aTileOrigin;
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out vec4 vColor;
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vec4 getColor();
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void computeVaryings(){
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vec2 pixelPosition =(aTileOrigin + aTessCoord)* uTileSize + uViewBoxOrigin;
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vec2 position =(pixelPosition / uFramebufferSize * 2.0 - 1.0)* vec2(1.0, - 1.0);
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vColor = getColor();
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gl_Position = vec4(position, 0.0, 1.0);
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}
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uniform vec4 uColor;
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vec4 getColor(){
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return uColor;
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}
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void main(){
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computeVaryings();
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}
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