30 lines
781 B
GLSL
30 lines
781 B
GLSL
#version 150
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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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in vec2 texCoord;
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uniform float MosaicSize;
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uniform vec3 RedMatrix;
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uniform vec3 GreenMatrix;
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uniform vec3 BlueMatrix;
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out vec4 fragColor;
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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 = texture(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 = texture(OverlaySampler, vec2(texCoord.x, 1.0 - texCoord.y));
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overlayTexel.a = 1.0;
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fragColor = mix(vec4(red, green, blue, 1.0), overlayTexel, overlayTexel.a);
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}
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