Is there a way to extract collision geometry?

[magneto]

Hi,

I tried to bring the collision geometry of an rbd object into SOPs but couldn't do it. Is this possible? Not sure if it matters whether it's bullet or RBD collision but I turned off geometry display and turned on collision display. But I am not sure if this is strictly for visualization or if it actually changes the output of the rbd node?

Thanks

[cwhite]

The guide geometry is just for visualization, but if you want to e.g. get the same convex hull shape that the Bullet Solver computes, you can generate that using the ShrinkWrap SOP.

[magneto]

Thanks cwhite, I was actually interested in getting other collisions like the aligned box, cylinder, capsule, etc

I changed the option to Fetch Geometry in the dopimport node, but like you said I didn't get the collision. But there has to be a way to get this mesh, right?

[cwhite]

Ah, I think I found it - you can set the Geometry Data Path to Geometry/BulletData to fetch the guide geometry from the Bullet solver.

[magneto]

Thanks cwhite, I understand it now. I didn't know it was stored there, and was accessible

[Keithtron]

I know this is an old thread, but is there any way to get the convex hull geo with the per-piece name attributes intact?  The convex hulls seem a bit useless without the name attr info, for most scenarios.

[cwhite]

If you only need this for convex hulls, just do a shrinkwrap SOP in a foreach loop and transfer any attributes that you need