When we load an ACEScg exr in Rv and display it in P3D65 (ACES) using OCIO, we can some see artefacts in the sky :
That do not appear in the Nuke Viewer (using OCIO as well) :
We believe this is related to the use of GPU LUTs in Rv. We have tried to increase the resolution of the GPU LUT but could not get a match below a resolution of 512x512x512 (as opposed of 32x32x32 now). Which makes this solution very heavy for the users.
We have some questions :
- Any plans on implementing OCIO V2 ? And if yes, when ?
- Any plans on running LUTs in CPU (like Nuke) ?
- Is it a matter of implementing OCIO differently in our pipeline ? Or using a shaper log space ?