Pixel - Bender Toolkit

pixel4 p = sampleNearest(src, outCoord()); float gray = (p.r + p.g + p.b) / 3.0; dst = float4(gray, gray, gray, p.a);

<languageVersion : 1.0;> kernel GrayscaleFilter < namespace : "MyFilters"; vendor : "YourName"; version : 1; description : "Converts image to grayscale"; > pixel bender toolkit

void evaluatePixel()