currently drawing cube and octohedron frame cells. if cells are scaled such that touch (includes remove ability to scale 8-cells cells), as want to do for #7 anyway, the touching faces shouldn't be seen (if camera doesn't see inside objects)
can delete the outside faces of cells. guess is ~half the faces/verts/frags so seems worthwhile (assuming performance does get slow for some reasonable value of computer - so far only tested on decent PCs and limited only by monitor refresh rate)
currently drawing cube and octohedron frame cells. if cells are scaled such that touch (includes remove ability to scale 8-cells cells), as want to do for #7 anyway, the touching faces shouldn't be seen (if camera doesn't see inside objects) can delete the outside faces of cells. guess is ~half the faces/verts/frags so seems worthwhile (assuming performance does get slow for some reasonable value of computer - so far only tested on decent PCs and limited only by monitor refresh rate)