Pixar has presented the latest version of its RenderMan.

There's a new roughness parameter to the PxrSurface material, so you can now have separate roughness values for reflections and refractions in the glass.

What is more, the update introduces a number of workflow improvements for Maya users when working with Alembic caches (the option to auto-save edits to RenderMan Look Files and more), and also adds support for Maya 2020.

RenderMan 23.1 is now available for 64-bit Windows 8.1+, macOS 10.13-10.14 and CentOS/RHEL 7.2 Linux. The toolkit is compatible with Maya 2018.3+, Katana 3.0+ and Houdini 17.0+.

Visit the official page to learn more.