Quote:
Originally Posted by videoh
The theoretical performance benefit of using a 3D LUT versus implementing the underlying math is reduced by the need for accurate interpolation. In DGHDRtoSDR performance is achieved with CUDA parallelism, so I don't need to bother with 3D LUTs. madVR supports both modes (3D LUTs and "pixel shader math").
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For my use case, it's not even about performance. If the "pure" math approach could achieve the same results as the LUT, I would use it if only to avoid the .cube file dependency. As it is, I didn't create the LUT and I don't need/want to tweak a multi-step filter chain to try and match it right now.