In the case of mesh or octree distance checks, we do a collision
after distance checking when doing signed distance to find
penetration depth. However, the maximum penetration depth was
initialized to numeric limits min, which is slightly greater than
zero. If the only contact is exactly 0.0 depth, the code fails.
Fix this to the negative max.
In the case of mesh or octree distance checks, we do a collision after distance checking when doing signed distance to find penetration depth. However, the maximum penetration depth was initialized to numeric limits min, which is slightly greater than zero. If the only contact is exactly 0.0 depth, the code fails. Fix this to the negative max.
This change is