currently blender mathutils.bvhtree.bvhtree.overlap() can test where meshes overlap and can be used to average normals across face seems.
in the game engine, internally the triangle mesh collison shape is a bvhtree,
I need to be able to use this bvhtree data to detect overlap in the game engine,
know someone who can?
send then a link please
this is for realtime generation of planets, caves etc.