Hi, It seems that Havok’s implementation of PhysicsShapeCylinder is broken; depending on the ratio between cylinder length and diameter, the actual collision shape used becomes an infinitely-thin planar circle. See this playground: https://playground.babylonjs.com/#0VS3BE#3 Turn on the Physics Hel…

So, I think there’s two separate problems here; one is the debug display geometry; internally, physics doesn’t store the “real” input vertices, so we reconstruct the debug geometry from the physics shape; we chose to use a “fast-but-slightly-inaccurate” algorithm here, which ends up with slightly sm…

Havok Cylinder Physics Broken

Bugs

Cedric May 3, 2023, 9:25am 7

I don’t think it’s a ratio problem. I think it’s related to this issue:

points A and B are not computed correctly so the cylinder is flat.

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Havok Cylinder Physics Broken

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