I mentioned it to you in a previous thread - there is a completely lossless workflow , but it involves EXR sequences and vapoursynth . There were issues before, but Resolve handles EXR float properly now, since v12 or 13 I think . Definitely with v15 it's ok.
Float enables you to convert YUV<=>RGB losslessly when done properly. If avs+ gets a float importer (import EXR that doesn't clip to 16bit int, like ffmpeg) , then it should possible in avs+ too since it can handle float now too.
|