Added caching to OpenVDB, which improves memory and speed performance in cases where the same VDB grid is used many times. (XPU already has a memory-focused variant of this optimization.) RMAN-21922
The RixTexture::TextureDerivatives() call has been restored to its former functionality. (In R26.0 it returned RixTexture::InvalidFile for non-texture-atlas files.)
The accuracy of an edgeTint lookup-table used by the LamaConductor bxdf in "Artistic" mode has been improved in both RIS and XPU. This can lead to slight look differences for that bxdf at grazing angles.
Fixed a bug where the field of view was not correct when resizing windows in a viewport render, and no camera exists in the scene.