Clément Foucault
8e35a9e4c7
This leads to a ~3ms improvement of CPU time during drawing. This prevent the rendering from being stalled waiting for the texture data to be transfered.
19 lines
419 B
GLSL
19 lines
419 B
GLSL
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uniform sampler2D blueNoise;
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uniform vec3 offsets;
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out vec4 FragColor;
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#define M_2PI 6.28318530717958647692
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void main(void)
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{
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vec2 blue_noise = texelFetch(blueNoise, ivec2(gl_FragCoord.xy), 0).xy;
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float noise = fract(blue_noise.y + offsets.z);
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FragColor.x = fract(blue_noise.x + offsets.x);
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FragColor.y = fract(blue_noise.y + offsets.y);
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FragColor.z = cos(noise * M_2PI);
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FragColor.w = sin(noise * M_2PI);
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}
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