sorry for my late answer.
so yep right of god have a good graphical engine but it's made for one player with no AI.
On SD we have found a good balancing between better graphic and good fps with some robots.
Actually with Gaetan we're working on PLIB->OSG(OpenSceneGraph) migration.
I made some tests with dynamic shadow on full scene and Gaetan work on dynamic Environment Mapping - all this makes SD very beautifull graphic but takes some ressources (CG & CPU) so we have found good balancing.