vellum grain leaking whith a second collider!!

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Hi everybody

Here is a problem I'v been struggling all day without finding a solution.

Y have a vellum grain colliding with a ground geo.... every thing is fine. But when a second deforming collider comes in play and gently pushes the grains, my grains are leaking through the ground....

Here is a sample in a simple scene where I replicated the issue, the one I'm working on is much more complex and much more leaking.
I'v try many settings, none is working

Pleas help me dear fellows

Malik
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VELLUM_GRAIN_LEAK.hiplc (513.2 KB)

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NAHASSIA
Hi everybody

Here is a problem I'v been struggling all day without finding a solution.

Y have a vellum grain colliding with a ground geo.... every thing is fine. But when a second deforming collider comes in play and gently pushes the grains, my grains are leaking through the ground....

Here is a sample in a simple scene where I replicated the issue, the one I'm working on is much more complex and much more leaking.
I'v try many settings, none is working

Pleas help me dear fellows

Malik
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vellum needs substeps when you have moving geo. change the vellum solver substeps to 10 and it should work
Edited by mihatsu - Dec. 28, 2021 16:37:22

Attachments:
VELLUM_GRAIN_LEAK.hiplc (516.4 KB)

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or on your /obj/grid1/vell/ground object you can set Collision Detection to Use Volume Collider
since Vellum's default is surface so your SDF wasn't being taken into account
Tomas Slancik
FX Supervisor
Method Studios, NY
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Thanx a lot for your help.

It worked fine specialy the surface / volume collision detection in vellum
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