# usdImagingGLengine couldn't render right pose with Usdskeleton value change

**URL:** <https://forum.aousd.org/t/usdimagingglengine-couldnt-render-right-pose-with-usdskeleton-value-change/860>\
**Category:** Hydra\
**Created:** [October 27, 2023, 9:46am UTC](https://forum.aousd.org/t/usdimagingglengine-couldnt-render-right-pose-with-usdskeleton-value-change/860 "2023-10-27T09:46:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![chongzijun](https://avatars.discourse-cdn.com/v4/letter/c/94ad74/32.png) [@chongzijun](https://forum.aousd.org/u/chongzijun)\
**Post date:** [October 27, 2023, 9:46am UTC](https://forum.aousd.org/t/usdimagingglengine-couldnt-render-right-pose-with-usdskeleton-value-change/860/1 "2023-10-27T09:46:48Z")

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Hello everyone, I encountered an issue while using usdImagingGLengine to render models. When I read the ‘restTransform’ property data of UsdSkelSkeleton prim, modify it, and write it back to the ‘restTransform’ property, I can obtain real-time transformed skeleton data. However, the appearance of the model rendered in usdImagingGLengine does not change with the skeleton transformation. It always remains in a fixed pose unless I reload the usd file. In order to render the model correctly matching the current skeleton data, I need to reload the usd stage. Is anyone else facing this issue? How can I solve it? Thank you very much for your help!

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**Author:** ![tomc](https://avatars.discourse-cdn.com/v4/letter/t/8dc957/32.png) [@tomc](https://forum.aousd.org/u/tomc)\
**Post date:** [November 18, 2023, 12:50am UTC](https://forum.aousd.org/t/usdimagingglengine-couldnt-render-right-pose-with-usdskeleton-value-change/860/2 "2023-11-18T00:50:26Z")

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Hi!

This sounds like a bug in the UsdSkelSkeleton drawing code. If you file a github issue we can take a look at it, or you’re welcome to take a look at the usdSkelImaging code on github. I suspect when we get a USD notice of the rest transform changing, we aren’t giving hydra the correct update notice.

Thanks,  
Tom