There are no mesh props here, everything on screen comes from voxels. Also there are no handmade voxel edits, this is strictly the output of grammars. Also note that the same few grammars are applied over and over. For instance curved walls are created with the same wall grammar used for the straight walls, they just run in a curved scope.
This is a scene we are creating to test some new cool systems we are developing to handle high density content.