

Bounding volume hierarchy (BVH) memory used by geometry is reduced by as much as 50% for large meshes.Time to first pixel is now faster thanks to a number of improvements including more efficient NVIDIA OptiX caching.

Textures are now loaded on-demand instead of at the start of the render, helping to reduce memory usage and save time from the first pixel.Improved support for Open Shading Language (OSL).Arnold 6 now rounds out the Arnold GPU toolset with updates across lights, shaders, and cameras: We first unveiled Arnold GPU as a beta release in March 2019 with support for a set number of features, including shading networks, hair, SSS, atmospherics, instancing, and procedurals.
