mirror of
https://github.com/Ttanasart-pt/Pixel-Composer.git
synced 2024-12-26 15:06:22 +01:00
23 lines
567 B
GLSL
23 lines
567 B
GLSL
varying vec2 v_vTexcoord;
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varying vec4 v_vColour;
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uniform vec4 color;
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uniform float intensity;
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uniform float band;
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uniform int atten;
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uniform float exponent;
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void main() {
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vec4 samp = texture2D( gm_BaseTexture, v_vTexcoord);
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float bright = (samp.r + samp.b + samp.g) / 3.;
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if(atten == 0) bright = pow(bright, exponent);
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else if(atten == 1) bright = 1. - pow(1. - bright, exponent);
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else if(atten == 2) bright = bright;
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bright *= intensity;
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if(band > 0.) bright = ceil(bright * band) / band;
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gl_FragColor = vec4(color.rgb * bright, 1.);
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}
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