Backface options

Would it be possible to have a couple of options for how backfaces are handled?

I know that the quantization can lead to slight gaps between geometry, and because backfaces are see through, the gaps can appear as bright white because the camera can see the sky through the backface of the outer building wall.

It would be cool if two options could be added.

  1. treat backfaces as individual faces (get their own uv’s instead of duplicating the front face)
  2. set to black instead of see through (so if backfaces are visible through cracks it’ll be less noticeable)