How to use line trace with skeletal meshes?

[BlueMountainsIO]

@UnexpectedSquirt

Unfortunately “Face Index” is never going to be returned for a skeletal mesh (it will be -1) , so your material lookup will fail.

In fact, in my experience it is only ever going to work for (non physical) static meshes. The reason is that despite the fact that you have ‘trace complex’ enabled, traces can only ever collide with the skeletal mesh’s physics asset bodies, not the literal triangles on the skeletal mesh itself.

This is actually a pretty annoying limitation of the underlying PhysX implementation. What would be great is if there was some way it could ‘convert’ the impact position on the physics body to a position on the tri mesh, in order to get a face index.

Does anyone at Epic have a workaround for this?

Bumping this. I wonder why there is still no way to do this for such an important feature.