Variants on Bones result with rendering of ghosted meshes

[Turowicz]

While trying to create a reproduction for you I have stumbled upon a potential workaround. You see we have always been loading the accessory aggregate (headwear agg) from a separate USD. When I defined the xform with payload variants in the person USD it does actually work. I will test with randomization now.

@Turowicz

Here you go. Please make sure you have the standard localhost nucleus with NVIDIA folder with all the S3 assets in there, as I have built these usds to base on publicly avilable content:

Contents of the zip are as follows:

• agg_things.usd has the aggregate with different variants that we want to maintain centrally.
• worker_with_agg.usd is an example of a person asset that is referencing the aggregate in a bone.

If you place those files in one folder, they should work due to relative paths. Please open the worker_with_aggs.usd and cycle through variants. You will see that it only adds new meshes to the viewport and doesn’t remove previous ones. They are being replaced on the object tree though.

worker_with_aggs.zip (4.9 KB)

[Turowicz]

Difference between defining variants in the human USD vs. loading from a separate USD.

tl;dr: the workaround is to define all variants inside the person and load them from an external USD.

This is still a bug related to variants and skeletons, so it should be worked on. In the meantime we have a workaround we can live with. It will take a lot of work to add those variants to all person USDs manually vs. referencing a single USD with varinats defined, but at least it will work.