Hello!

In SOPs, given 10k instances of 4 packed prototypes randomly assigned, is there a simple and efficient way/node of getting the 4 prototypes back as they would be before the copytopoints sop?

(Numbers just illustrate the example, not relevant)

Thanks!

You can use the "geometryid" primitive intrinsic attribute to find all the unique prototypes.

Here's an example of how you could get the original instances back.

Thanks! That would work but in dense point clouds it gets a bit heavy. I imagine there is no other way that does not require evaluating all primitives right? What I have in mind is something like getting back from memory the prototypes, the same way I'm guessing the instancer is doing.