Semi-troglodytic sky building

Sky platform with three levels, the lower and smallest can be accessed by a narrow tunnel dug into a small room on the middle level.

This is not nearly as optimized as it should, but Sansar handles it.
The collision mesh is what I was originally going to use as the final mesh, but it turned out that it just didn't have enough geometry for baking my original voxel sculpt to it.
So I used Instant Meshes to generate the 60k mesh.

59714 triangles
Collision 8398 triangles
4096 textures + 2048 detail
63.5mb