Optimized for Nvidia RTX hardware- Scale up rendering power when production demands it. Reduced GPU noise- Comparable to CPU noise levels when using adaptive sampling, which has been improved to yield faster, more predictable results regardless of the renderer used. Lights, cameras and More- Support for OSL, OpenVDB volumes, on-demand texture loading, most LPEs, lights, shaders and all cameras.

Unified renderer- Toggle between CPU and GPU rendering. The Arnold GPU is based on Nvidia’s OptiX framework and takes advantage of Nvidia RTX technology. Rigging improvements: Matrix-driven workflows, nodes for precisely tracking positions on deforming geometry and a new GPU-accelerated wrap deformer. Modeling enhancements: New Remesh and Retopologize features.

Viewport improvements: Users can interact with and select dense geometry or a large number of smaller meshes faster in the viewport and UV editors. Bifrost for Maya: Performance improvements, Cached Playback support and new MPM cloth constraints. Animation bookmarks: Mark, organize and navigate through specific events in time and frame playback ranges. Cached Playback: New preview modes, layered dynamics caching and more efficient caching of image planes. Over 60 animation features and updates to the graph editor and time slider.

Arnold in maya 2020