Pyro collides with bounds of my collision geo

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Joined: 6月 2023
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I cant get sop level pyro to read my collision object. If i sue SDF collision it doest work and when I use geo it collides with the bounding box instead

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Desktop 2025.12.11 - 13.49.04.05 - Trim.mp4 (3.6 MB)

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Joined: 7月 2007
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for Collision Geometry collision type you need geo with velocity + SDF vdb
you can use Collision Source SOP, merge both outputs and plug into pyro

for SDF + Volume Velocity you need SDF vdb and velocity vdb, you can create both using VDB From Polygons SOP if you have valid v attribute on your geo, just make sure your vdb names match what Pyro expects, by default "collision" and "v"

either should work for your geo as long as you have correct v and if the voxel size of pyro as well as your SDF is low enough to capture the thickness of your collider
Tomas Slancik
CG Supervisor
Framestore, NY
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