How to use proxy geometry as collision geometry in RBD Sim

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Hi!

I want to do a RBD simulation on these leaf pieces:



I created some proxy geo for them with simple boxes:


However, some of these boxes apparently are being converted to something of a convex hull, while other boxes aren't.



The ones that have the collision geo of boxes land flat while the ones with the more spherical collision geometry (which is being generated somewhere) continue to roll, thus creating a lot of inconsistency in the simulation.

Any thoughts on how to get the SOP rbdbulletsolver to always use the collision proxies that I give it? Am I missing something? (Note that I'm not using packed geometry)

Attachments:
2023-10-10_17-11.png (2.6 MB)
2023-10-10_17-12.png (2.4 MB)
2023-10-10_17-12_1.png (2.7 MB)

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134 posts
Joined: Sept. 2021
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AnsonSavage
Hi!

Any thoughts on how to get the SOP rbdbulletsolver to always use the collision proxies that I give it? Am I missing something? (Note that I'm not using packed geometry)


I discovered that if I pack the proxy geometry going into the simulation, it seems to behave correctly:


Not sure why, but it seems to be working now!

Attachments:
2023-10-10_17-16.png (2.6 MB)

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