mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-09-21 04:41:52 +02:00
33 lines
676 B
GLSL
33 lines
676 B
GLSL
varying vec2 v_vTexcoord;
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varying vec4 v_vColour;
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uniform float tolerance;
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uniform int useMask;
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uniform sampler2D mask;
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#define PALETTE_LIMIT 128
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uniform vec4 colorTarget[PALETTE_LIMIT];
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uniform int colorTargetAmount;
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void main() {
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vec4 c1 = texture2D( gm_BaseTexture, v_vTexcoord );
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gl_FragColor = vec4(0.);
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if(useMask == 1) {
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vec4 m = texture2D( mask, v_vTexcoord );
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if((m.r + m.g + m.b) * m.a < 0.5)
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return;
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}
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float minDist = 10.;
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for(int i = 0; i < colorTargetAmount; i++) {
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float dist = distance(colorTarget[i].rgb, c1.rgb);
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minDist = min(minDist, dist);
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}
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if(minDist > tolerance) return;
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gl_FragColor = vec4(v_vTexcoord, 1., 1.);
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}
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