Thin Deformable Body falling through Rigidbody: Simulation and Visual Meshes don't allign

Hello!
I’m trying to simulate a thin Deformable Body lying on a Rigidbody. My problem is that the Deformable Body falls through the Ridigbody as soon as I start the simulation as seen in “VisualMeshBeforeSimulation.png” and “VisualMeshDuringSimulation.png” in the provided zip-folder.

ExampleImages.zip (666.3 KB)

But if I turn on Show By Type > Physics > Deformable Body > Selected / All + Simulation / Collision in the UI the Deformable Body behaviour seems to be correct. (See “ColliderMeshes.png” and “SimulationMeshes.png”)

I already tried playing around with a lot of the Deformable Body settings like Simulation Mesh Resolution and Target Triangle Count, but the behaviour stays the same.

Is there any way I can fix this issue? I appreciate any help!

The behavior is the same with a thicker deformable?

Have you tried modifying the simulation tick?

Hi!
Thank you for your answer!
No, thicker bodies work - as far as I can tell - as intended.
Increasing the simulation tick rate does not change the behaviour.

Hi @kai.schlauersbach ,

The problem is likely that you haven’t tesselated your graphical mesh. The simulation can’t deform the graphical mesh unless it has sufficient resolution.
I suppose you used the create → mesh → cube to create the graphics mesh?
If so, you can do create → mesh → settings, then go to cube and adjust your resolutions, then rebuild your deformable. You might need to ctrl + double click the resolution fields, to enter values manually.

Cheers,
Simon

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Thanks a lot, that did the trick!

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