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Here is an example of exporting Ri Attributes (e.g. Ri Round Curve) to an Alembic File for reading into RenderMan for Maya (RfM), which expects rman__ and not ri_ as Houdini has historically used.  

  • Add an AttributeCreate node.
  • Name it as how it is named in RenderMan for Maya, e.g. rman__riattr__dice_roundcurve
  • Set the Class to Detail
  • Set the Value expression to the Ri Attribute (e.g. ri_roundcurve)


You can download this example here: curves_alembicattr.hip

When you read the alembic file into RfM, you will see the Round Curve attribute with the setting from Houdini.