Still, you have the cluttered geomoetry in terms of connected faces and tesselation.
What would be ideal, for a wall for example, not having it made out of individual bricks (even on simple LOD, you have the top/bottom faces that will never show), but instead make the wall one solid piece of geometry and use normal mapping to create the inter-brick grooves.
I also tried a bit with lego meshes (a while ago), and found out that individual bricks, no matter how simple they are (just boxes), are just not feasable… Also in terms of lightmapping, its a lot easier to work with a larger surface…
Unless… you write a Max script that:
- checks all bricks for non visible faces and removes them
- welds all congruent vertices
- merge all coplanar faces to large quads
- deletes all now freefloating vertices