Casting a ray to RigidBody with compound shape

[darus]

Hello.

I have a question concerning btCollisionWorld's rayTest functionality. As far as I can understand, one can only have a btCollisionObject as a result. In my case, all world objects are actually btRigidBodies with a btCompoundShape containing several btConvexShapes. Is there a way to get the exact btConvexShape, that was hit by a ray?

Thank you!

[MGB]

I need this for my game too...
Looking at the code I see the required info in btCollisionWorld::LocalShapeInfo, and the comment:

///Currently, only btTriangleMeshShape is available, so it just contains triangleIndex and subpart

Damn. Looks like I didn't do my bullet homework well enough

[Erwin Coumans]

The index member of LocalShapeInfo will contain the index of the child shape, also for btCompoundShape.

Thanks,
Erwin

[MGB]

Ahh, I was looking at m_shapePart for the shape index (always -1) - So the shape index is in m_triangleIndex eh!
Thanks.