Radeon ProRender 2.2.20 for Houdini and USD

• Support of Houdini 19. Houdini 19 adds MaterialX nodes which Radeon ProRender supports through the plug-in.
• Updates to the Render Quality modes:
  • RPR Interactive is a new mode supporting GPUs which use the Vulkan ray tracing extension, and is optimized for fast viewport rendering;
  • RPR Final, previously Full” mode. It is intended “” for final rendering the utmost physical correctness and image quality;