I'm not going to have much time to play over the weekend but did manage to try out the rtp feature.
I'm having some problems getting it to work.
When I switch from the "normal" render mode to rtp it works great initially. However if I move the camera while in rtp mode it doesn't render anything in the new areas that are revealed when I move the camera.
For instance if I'm viewing the front of the mountain in normal render mode and then switch to rtp everything is fine. If I then move the camera round the back of the mountain it doesn't render the back of the mountain or any of the terrain that was obscured by the front of the mountain until I switch back to normal mode and the back to rtp.
Hope I'm making sense.
If I click back to normal mode and back to rtp it renders ok again until I move the camera.
