Assign color to prim position?

POPs
1

I’m trying to assign the color of a privative to the prim position. In SOPs it would be using a privative sop and then me.inputPrim.center[0] me.inputPrim.center[1] me.inputPrim.center[2] in the color fields. I just cant figure out how to do the same thing using pops.

Anyone have any suggestions?

2

Are you trying to assign the mesh’s center position to the Color attribute?

Just keep in mind that the word primitive means different things in SOPs and POPs.

  • In SOPs, a primitive refers to surface types such as Polygon, Mesh, Particle, Curve, Sphere, Tube, Metaball, etc.
  • In POPs, a primitive refers to geometry data types like Polygon (triangles/quads), Line Strip, or Point Primitive.

If your goal is to assign the center position to the Color attribute in POPs, one way to do it is to use a Math Mix POP. Set the Operation to A, and assign the built‑in attribute _BoundsCenterP to the Color attribute. This will transfer the geometry’s bounding-box center position into the Color attribute.

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For more details, you can refer to this page