The wireframes does not look like a convex hull.
The following figure shows a nodepath generated using the same geom. It is very different from the BulletConvexHullShape under the DebugNode.
Thanks a lot!
According to the example, it seems the BulletConvexHullShape accepts a concave Geom and automatically compute its hull. Is that true? The weird DebugNode rendering made it difficult for me to observe the correctness… Right now I am computing a convexhull explicitly outside.