Function all_is_cubes::triangulator::triangulate_space

pub fn triangulate_space<BV, GV, A>(
    space: &Space, 
    blocks_render_data: &BlocksRenderData<BV, A>, 
    output_vertices: &mut FaceMap<Vec<GV>>
) where
    BV: ToGfxVertex<GV>,
    A: TextureAllocator, 

Computes a triangle-based representation of a Space for rasterization.

blocks_render_data should be provided by triangulate_blocks and must be up to date (TODO: provide a means to ensure it is up to date).

The triangles will be written into output_vertices, replacing the existing contents. This is intended to avoid memory reallocation in the common case of new geometry being similar to old geometry.

output_vertices is a FaceMap dividing the faces according to their normal vectors.