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NVIDIAGameWorks / PhysX

NVIDIA PhysX SDK
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unstable Rigid body when using GPU dynamics #676

Open hadar-segal-isi opened 2 days ago

hadar-segal-isi commented 2 days ago

Hi, I tried to run the same scene with and without GPU dynamics. The scene has one kinematic rigid sphere attached to another sphere using a distance joint. There is no collision and no gravity and there is a fair amount of damping in the system. When GPU dynamics is enabled the rigid body motion is significantly more chaotic. The reason I'm interested in GPU dynamics is because I would like to have soft bodies interacting with rigid bodies (and soft bodies only work with GPU). please see attach video and usda file

https://github.com/user-attachments/assets/4275776f-1116-4488-a611-40dbfda4bdf3 distance-joint.usda.txt

Thanks

vreutskyy commented 1 day ago

Hi @hadar-segal-isi Thanks for reporting this issue. A minor thing, but for Omniverse apps and the latest PhysX it's better to use this repository: https://github.com/NVIDIA-Omniverse/PhysX Regards

hadar-segal-isi commented 1 day ago

Will do, thanks! https://github.com/NVIDIA-Omniverse/PhysX/issues/334