28 lines
847 B
GLSL
28 lines
847 B
GLSL
#version 120
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uniform sampler2D DiffuseSampler;
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uniform sampler2D OverlaySampler;
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uniform vec2 InSize;
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varying vec2 texCoord;
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uniform float MosaicSize = 1.0;
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uniform vec3 RedMatrix = vec3(1.0, 0.0, 0.0);
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uniform vec3 GreenMatrix = vec3(0.0, 1.0, 0.0);
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uniform vec3 BlueMatrix = vec3(0.0, 0.0, 1.0);
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void main(){
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vec2 mosaicInSize = InSize / MosaicSize;
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vec2 fractPix = fract(texCoord * mosaicInSize) / mosaicInSize;
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vec4 baseTexel = texture2D(DiffuseSampler, texCoord - fractPix);
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float red = dot(baseTexel.rgb, RedMatrix);
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float green = dot(baseTexel.rgb, GreenMatrix);
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float blue = dot(baseTexel.rgb, BlueMatrix);
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vec4 overlayTexel = texture2D(OverlaySampler, vec2(texCoord.x, 1.0 - texCoord.y));
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overlayTexel.a = 1.0;
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gl_FragColor = mix(vec4(red, green, blue, 1.0), overlayTexel, overlayTexel.a);
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}
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