40 lines
1.2 KiB
Plaintext
40 lines
1.2 KiB
Plaintext
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#[compute]
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#version 450
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layout(local_size_x = 8, local_size_y = 8, local_size_z = 1) in;
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layout(rgba16, set = 0, binding = 0)
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uniform restrict image2D lastProcessedImage;
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layout(rgba16, set = 1, binding = 0)
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uniform restrict image2D currentImage;
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layout( push_constant, std430 )
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uniform Params
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{
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float amount;
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float smearing;
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float luma;
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float minBrightness;
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float saturate;
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} params;
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void main()
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{
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ivec2 currentPosition = ivec2( gl_GlobalInvocationID.xy );
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vec4 currentPixel = imageLoad( currentImage, currentPosition );
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vec4 lastPixel = imageLoad( lastProcessedImage, currentPosition );
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float luminance = min( 1.0, length( vec3( lastPixel.r, lastPixel.g, lastPixel.b ) ) );
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float amount = ( luminance - params.minBrightness ) / ( 1.0 - params.minBrightness );
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amount = min( max( 0.0, amount * params.saturate ), 1.0 ) * params.smearing;
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amount = mix( 1.0, amount, params.luma );
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vec4 nextPixel = currentPixel + min( 1.0, amount * params.smearing ) * ( lastPixel - currentPixel );
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imageStore( currentImage, currentPosition, mix( currentPixel, nextPixel, params.amount ) );
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imageStore( lastProcessedImage, currentPosition, nextPixel );
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}
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