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Known Limitations

 

Live Rendering

  • Creating a mesh light from existing geometry will duplicate the geometry in-render. Restart the render to remove the duplicate.

  • Cannot change a geometry primitive type during live rendering (e.g. from NURBS to polymesh)
  • Edits to mesh light parameters require that the geometry location is enabled in the live render working set
  • When assigning a material to a Scene Graph location, that location must be enabled in the live render working set

  • Cannot create new volumes or enable existing-but-disabled volumes during live rendering.

 

Katana Limitation

  • When rendering to "it" from Katana, do not stop the render from "it", abort the render from Katana. Your Katana session may freeze for a time if you abort from "it". If you make this mistake you can restore Katana to operation by terminating the prman render process manually. This will be fixed in a future version. You can also avoid this entirely by rendering to the Katana Monitor.
  • Light Linking volumes is not currently supported
  • We do not receive live render edits from Katana for nodes added at the end of the node graph, right above the Render node.  If a no-op node (e.g. Merge) is inserted above the Render node and the node is added above that then the edit is received.
  • Any live updates will cause interactive motion blur to be disabled. The render must be restarted.
  • PRMan error handlers are not fully supported yet.
  • Instanced lights with filters using the "Light Filter" coordsys have an incorrect transform. The workaround is to promote the light filter to a shared light filter using a light filter reference.
  • There are a few live render limitations in Katana 2.6 that have been resolved in Katana 3.0 based on the improvements to 3.0, typically limitations with live working sets and adding/deleting locations in 2.6