I was wondering if people have been experimenting with Renderman too. I have, check the “New feature tests” topic in Finished Projects. (Yes, they are ugly, but it was about exporting, not showcasing my horrible artistic “skills”. ;))
If you would like to experiment, here are some links:
A version of Tuhopuu which can export a bit like the way Yafray is exported now. It’s aimed very much (only?) at Aqsis. (This installs Aqsis too.)
The Tuhopuu and DLLs needed without Aqsis. The Tuhopuu included in the installer above did not work for me (but I might for you). This one did work.
Blenderman. A Python script which exports RIBs, shows the render progress, and allows you to tweak material and object settings for the renderer. It’s very elegant and quite stable, aimed at more Renderman renderers than just Aqsis, and I find it to give more attractive results than the Tuhopuu. Unlike the Readme says, it does work with the latest Blender and Python releases.
Please share your results, problems and solutions with me in the Feature tests topic