What are the necessary plugins that must be loaded by OpenUSD for USDSerializer to work?

[rares-radu]

I've been trying to use USDSerializer, but it seems to just crash due to a missing plugin. Besides usdShaders, which other plugin(s) must be loaded for the serializer to work? I could just point PXR_PLUGINPATH_NAME to each and every one of them, but there's 29 in total and I'd rather only load the necessary ones.

[aothms]

Sorry, I only have a lazy answer that I don't remember. I think I just set it to the root dir of all plugins or usd itself. If you figure out, would be nice if you can add it to the documentation.

These kind of concerns were also the main reason why the USD serializer is not really packaged in the automated builds. We're quite used to downloads as stand-alone exes and requiring paths in env vars really messes with this. We had the same problem with PROJ requiring an sqlite db of CRSes (so this is also not enabled; it allows georeferenced gltf output directly in cesium which is quite cool).

The USD serializer in ifcopenshell could also benefit from a lot of improvements such as inherit arcs for geometry re-use etc.

[rares-radu]

Thanks for the answer anyway. I'll try and point it to those that reference one of the DLLs that the build process copies to the output dir. By the way, it's actually impossible to enable USD support as of right now, since the WITH_USD definition never gets added. I created a pull request fixing that. #7851