> The reason why is that mesh vs mesh essentially should never be used in video games
Or, alternatively, the reason why mesh vs mesh is never used in video games is that it hasn't been solved well yet and we have to stick to simplified collision geometry and the resulting glitches we get in games?
Mesh vs mesh collisions will never be faster than primitive collisions. Also, simplified collision geometries do not produce glitches in the same way mesh vs mesh collisions do. At most you may have a collision between two primitives where the models don't actually seem to be touching. But this can easily be circumvented.
In fact, I would argue that a lot of the physics glitches we've seen are probably the result of using mesh colliders when a simplified geometry would have sufficed.
Or, alternatively, the reason why mesh vs mesh is never used in video games is that it hasn't been solved well yet and we have to stick to simplified collision geometry and the resulting glitches we get in games?