Matt Tillman

You could try a switch pointing to a reference to the payload on disk. Then you can control the switch with a context option on the ROP.

I know this is an old thread but I was having this issue myself so I wanted to share the solution.

Make sure to set frame sampling on the attribute wrangle as well.

In my case when I use an attribute wrangle over an array it will set the length of the array to be exactly same on every frame unless frame sampling is on. This caused so many crazy render issues until I figured it out.
I'm not sure if it's a bug or just another quirk of the whole Solaris/USD way of doing things.

Heileif
Im only on my phone.

But if I remember correctly you only need create a string attribute named purpose with purpose you want as value.

That's definitely the case for sending geo from sops to lops. I think cdordelly is asking about a clear attribute to show what the purpose was when getting geo into sops from lops.

I had a quick look and I ran into the same thing, an intrinsic array is created that ends up being the same across all geo so you need to rely on the path to determine the purpose.