Real-Time Physics Simulation Forum

I have a system where I am pushing a block along a surface. If I make the surface out of a large btBoxShape, the block moves just fine. When I make the surface out of a btBvhTriangleMeshShape the block starts hoping as it slides across the surface. When I make the surface out of a btConvexHullShape, the block slides ok, but it does get some rotation from the surface.

Right now the surface is a flat surface in the shape of an oval. Eventually I would like to have it have some variations in height.

The next problem I have is very similar. Along the edges of the oval there are walls. I have also made the walls out of a btConvexHullShape. Each was segment is 2 triangles. As of now the block can go through the wall pretty easily. Is there a better way to do this?

thank you.

I have changed the box to a btHullShape also and now it seems to work better, and not penetrate the other btHullShapes as easily.

For the btBvhTriangleMeshShape, come collision can occur with the internal edges. Just try implementing the workaround shown in the following post:

http://bulletphysics.org/Bullet/phpBB3/ ... dge#p24566

I am using it for my rigid body based vehicle simulation and my cylinder bodies for the wheels slide perfectly on my terrain mesh based on btBvhTriangleMeshShape.