Hi.
A long time ago, I posted a this issue.

https://www.sidefx.com/forum/topic/102116/ [www.sidefx.com]

This hasn't been fixed yet on latest production version.
Would you correct it?
Or, when you tell me causes about it, I will fix my USD data.

I must resolve this issue urgently.

Hi kurosaba,
I'm not sure how your .usd file was authored, but when I bring it into the stage via a Sublayer or Reference LOP it does not show up in Vulkan/OGL, nor does it render with Karma (Houdini 21.0.596). However, when you append a SOP Modify and simply set it to unpack either your "MESH" Xform prim, or your "hair" mesh prim, everything shows up fine.

Hi Siavash Tehrani.
Thank you for teaching.

When I tried your idea, Viewport's render my usd.
But, my USD Data broken. Because, jointIndices on SkeltonAPI changed type int to GfVec4i.
Also, jointWeights on SkeltonAPI changed type float to GfVec4i.

Therefore, the referenced animation can't play.


Honestly, I don't know what caused it.
If only I knew the cause, I will try to fix it myself...
By the way, I created this USD data myself at Python.

I was informed about that by SideFX Support.
This issue is by OpenUSD.

The bug has been submitted here.
https://github.com/PixarAnimationStudios/OpenUSD/issues/3873 [github.com] https://github.com/PixarAnimationStudios/OpenUSD/pull/3874 [github.com]