2d928d328e
Former-commit-id:a1d931fd44[formerly61f269f54c] [formerlya1d931fd44[formerly61f269f54c] [formerlyf2fac39428[formerly d85b989f77196d20eb2d2a21cf4daa13d50474ae]]] Former-commit-id:f2fac39428Former-commit-id:7fb0b17bd5[formerly72824561cb] Former-commit-id:9b5c2094ed
20 lines
No EOL
661 B
GLSL
20 lines
No EOL
661 B
GLSL
// this shader program sets values into a mosaic texture
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// which is the same size as the screen (frame buffer)
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uniform sampler2D imageData;
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uniform sampler2D mosaicTexture;
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uniform int height;
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uniform int width;
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void main(void)
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{
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vec2 xy = gl_FragCoord.xy;
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vec4 imageVal = texture2D(imageData,gl_TexCoord[0].st);
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vec4 curVal = texture2D(mosaicTexture, vec2((xy.x / float(width)), (xy.y / float(height))));
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// assume 0 or NaN is No Data and should be replaced if another image has better values.
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if ( imageVal.r != 0 && imageVal.r == imageVal.r) {
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gl_FragColor = vec4(imageVal.r,0.0,0.0,1.0);
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} else {
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gl_FragColor = vec4(curVal.r,0.0,0.0,1.0);
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}
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} |