https://renderman.pixar.com/products/news/rfm_eval.html
Quote from the Pixar:
Tightly integrated into Maya's workflow, Pixar's RenderMan for Maya EVAL is easy to install and use, and offers all the advantages of RenderMan including ultra-fast 3D motion blur, fast displacements, micro-polygon tessellation, ambient occlusion, deep shadows, and fully integrated one pass hair, fur, and particle rendering at the highest cinematic levels of quality.
P.S. These advantages are great ...... but still have some bugs & artifacts, especially in raytrace rendering
