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I currently have a R8G8B8 floating point render target and want to use it as a R24 target. The code
//cg
out = float4(v, v, v, v);
seems to clamp out between 0 and 1.
What’s the proper way to write/read to a floating point texture in Cg?
In OpenGL, you need to use a floating point texture format, such as R32F or RGBA32F. Then you won’t get clamping. I bet it’s the same in D3D.