Can't export geometry cache as usd

Development Cinematics & Media
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1

Whenever I try to export a geometry cache from unreal as .usda, unreal crashes immediately. (See the attached file for the crash log)

2

Steps to Reproduce

  • Place geometry cache into map
  • File>Export Selected>Save as .usda
  • Set export options as follows:

[Image Removed]

3

Hi Vojtech,

Can you share the geometry cache asset that you’re trying to export? The callstack indicates the geometry cache says it has velocities/motion vectors but it has none when queried.

Was the geometry cache imported with AbcVelocitiesAsMotionVectors?

Thanks

Anousack

4

Hi,

below is the problematic usd file. I’ve also tried removing the velocities attribute from the usd before importing into unreal and only then I’m able to export it without a crash.

To answer your question, I was originally using the usd stage manager for import which doesn’t seem to have that option. But even after switching to the interchange importer and enabling AbcVelocitiesAsMotionVectors, I have the same issue.

Thanks.

Vojtech

5

Hi Vojtech,

Thanks for the file. I’ve identified the issue and will have a fix soon.

Thanks,

Anousack