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Many options have been removed from RenderMan, these decisions were to improve performance of the renderer and the workflow for artists, as such, the options provided are to help guide the user to the correct workflows and reduce headaches. As always, avoid using optimization controls (like those found in integrators and some materials like PxrVolume) to achieve a specific look. These techniques may be improved or modernized in later versions and you will not have access to them.

Please note that the original RMSTREE variable is no longer used and instead we use RFMTREE for the Maya plugin environment variable. You can find details here.

Main Changes

Shading

• RenderMan 22 maintains the same shading options supported in RenderMan 21. However, some materials have been removed since their deprecation in RenderMan 21, of note are the removal of:
  • LM Materials
  • PxrGlass
  • PxrSkin

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