Testing if anybody sees my emails...
> On Jun 4, 2023, at 6:27 PM, Vladlen Erium <v...@hdri.xyz> wrote: > > What should be most efficient way to implement normalizing vector data images > (normals) using ImageBuffAlgo? > > For this moment I only see the way to do this in four steps. > ImageBuffAlgo::madd for [0.0,1.0] -> [-1.0,1.0] > ImageBuffAlgo::pow for power of 2 > ImageBuffAlgo::sum_channels for vector magnitude > ImageBuffAlgo::div (sec and magnitude) to normalize vector length > ImageBuffAlgo::madd for normalize to [0.0, 1.0] range. > > This not only required to make so many steps but also required a lot of > temporary buffers, that for huge textures can required lot of memory. When > all steps can be done per pixel and perfectly parallelized (shaders, cuda). > > Maybe I missed some OIIO functions? 🤔 > > Best regards: > Vlad > > PS: btw, looks like Google completely filter out all Larry messages if Gmail > used for subscription to this mailing list. They even not in spam folder, > where mail list messages quite often can be moved 😒 > _______________________________________________ > Oiio-dev mailing list > Oiio-dev@lists.openimageio.org > http://lists.openimageio.org/listinfo.cgi/oiio-dev-openimageio.org -- Larry Gritz l...@larrygritz.com
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