   Volume Sweeping To Marching Cubes
  I would like to have some suggestions how to sweep (collision detection) an OBB and/or Sphere to a world made out of Marching Cubes or a triangle mesh in general...I have worked with AABB sweeping to convex polyhedrons but that won’t work with a Marching Cube world. Is there some clever way to do sweeping to the voxels directly or do I have to do it to the triangles generated by the Marching Cube algorithm?   