It adds an evaluation path capable of executing arbitrary supported MaterialX surface networks, including networks based on MaterialX Standard Surface and the OpenPBR Surface model. RenderMan 27.3 adds native execution for an important class of MaterialX nodes, but not every material-domain feature. https://rmanwiki-27.pixar.com/space/REN27/857702405/RenderMan+27.3https://rmanwiki-27.pixar.com/space/REN27/542236818/XPU+Features+and+LimitationsProduct RenderMan Developer Pixar Animation Studios Version 27.3 Release status Production release; official release notes dated 15 July 2026. (renderman.pixar.com) Formats and standards Alembic, OpenColorIO, OpenEXR, OpenSubdiv, OpenVDB, OSL, Ptex, SeExpr, UDIM and USD; XPU 27.3 adds initial Cryptomatte output. (renderman.pixar.com) Documentation RenderMan 27.3 release notes Download RenderMan installer Website RenderMan