Proper shading integration is still waiting to be implemented (and was partly waiting for multipass rendering). I should also rewrite transparent rendering, though I'm not 100% sure how to exactly implement it with the multipass rendering system. We'll see about that.
But finally I can (at least in theory) support shadows, reflections, environment mapping etc. etc... Was about time. [grin] I have thrown a lot of work away, and repeated a lot of work with this rewrite, but I can say it's been totally worth it.