RENDERMAN 22 DOCUMENTATION

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When rendering it's usual required that you set a default pose or position for your object to become a reference for later renders even if the object deforms or moves around. This is to prevent "swimming" or a texture effect appearing to slide across the object as it animates. It's typically referred to by its technical name of Pref.

In Houdini you can easily set a parameter using these steps:

 

  1. At the default pose, create a Rest node
  2. Create an attribute node, in the RenderMan tab select "add to default mappings"
    1. Houdini name is: rest
    2. RiType is Pr
  3. In your PxrManifold3d used for controlling pattern placement, under Pref type Pr

 

From here your renders should use the default position and shape set by the Rest node.