AgentSmith wrote: ++++++++++++ "Actually, no it wasn't explained here." ++++++++++++ On 20th June in the Renderosity Bryce forum, pumeco said: "I can tell you that because Bryce 5 does'nt allow for a plugin renderer, you're right in assuming it uses a .br5 file to set up the renderer. However the .br5 file alone is not enough to be able to use PRO-RENDER correctly. This is because PRO-RENDER uses a method that requires not only a VERY specific scene preset, but also modification of all rendered materials. The final element of PRO-RENDER is the documentation, which describes the undocumented abilities and methods to be learnt in order to allow the Bryce 5 render engine to perform PRO-RENDER abilities." Later the same day: "As far as the Bryce 5 render engine question goes, as I said earlier, Bryce 5 does'nt allow for a plugin renderer, so yes, it does use the Bryce 5 renderer. PRO-RENDER consists of .br5 setup files, compatible material presets, and documentation needed to describe the PRO-RENDER method of rendering." http://www.renderosity.com/messages.ez?Form.ShowMessage=1822731 Seeing as you were unaware of the free status of PRO-RENDER, I can only conclude that you haven't seen that thread, AgentSmith. Nevertheless, you not having seen his explanation here is a very different thing to you saying that he hasn't provided one - and saying his title is "misleading". Given your categorical statement about light bouncing in Bryce, perhaps you also missed this one: http://www.renderosity.com/messages.ez?Form.ShowMessage=1832901