Single sided, concave, closed triangle meshes.

[Bram Stolk]

Is there a way to tag a Gimpact Triangle Mesh as being single-sided, and closed?

Because currently, I see it being treated as a triangle soup instead, and internal edges of the mesh can generate collision contacts, with collision normal in the triangle plane, instead of perpendicular to it.

When a mesh is completely closed, then there is a well defined inside and outside. So I would expect all contact normals to point in the direction of the triangle or vertex normals, and never lie in the triangle plane.

I have been filtering the contacts in the near callback to detect these cases, but it would be nice if I could stop ODE to generate these kind of internal-edge contacts in the first place.

[Oleh Derevenko]

Does not look like the author of Gimpact is still here. ☹

 

Oleh Derevenko

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