The new polyextrude in H15 does not seem to support $PR any more.

In H14, I can extrude each prim by a different amounts, using rand($PR). But that no longer works. Is that correct? Any reason why this has been disabled?

Creating a prim attribute like ‘dist’ and then using ‘@dist’ or ‘$DIST’ also does not work any more.

The new workflow is a bit different and more focused towards attributes instead of per operator variables as $PR was in old extrude afaik.

If you want to get random extrusion per primitive:

1. Before polyextrude sop create float per primitive attribute named “localzscale”. This is extrusion distance multiplier.

For example with Primitive Wrangle:
f@localzscale = rand(@primnum);
2. In Polyextrude SOP set extrusion Distance to 1.

3. And then in Local Frames Attributes enable the Z Scale (default attribute is “localzscale”) so now it reads your custom extrusion scale defined in previous PrimWrangle.

Thanks for the reply.

I am not really sure why we can't have both methods. For simple extrusions, the old way is more straight forward.