what is the version of OIDN used in 20.5? Is it 2.2.1 as it says in the denoise AI cop? If so, is there a chance this can be upgraded to 2.3 with a production built or is this something that only happens with a major releases?

ok, so according to the dll supplied with houdini it is 2.2.1. What I tried now was to get the latest compiled version (for windows) and just copied it over the existing dll in houdini. Not only does that work and also seem to yield better results, now the gpu acceleration works, too!!! I think this is due to the fact the OIDN version supplied with houdini misses OpenImageDenoise_device_cuda.dll.

ronald_a
ok, so according to the dll supplied with houdini it is 2.2.1. What I tried now was to get the latest compiled version (for windows) and just copied it over the existing dll in houdini. Not only does that work and also seem to yield better results, now the gpu acceleration works, too!!! I think this is due to the fact the OIDN version supplied with houdini misses OpenImageDenoise_device_cuda.dll.

This fixed the ai denoiser node that, by default, does not work and does not show the optix denoiser. Thx!