Disk Cache?

[hkroeber]

Oh, I see what you mean.

When the underlying PhysX engine detects a deformation change in the collider, it resets the internal mesh and keeps going....but it has no way of knowing the change in velocity between vertices because the only motion is cares about is the transform of the object itself. So in that sense, a conveyor belt will not work.

A workaround would be to convert your conveyor belt into individual many objects traveling along the path (like a bike chain)...each one its own collider. Then the PhysX engine could process their velocity.

Yes ,
in pflow there is an extra shape mode called "animated Surface". I think it generates 1 colision shape on every poly .