po nejakom case sa azda yafray trocha vytrhol zo stagnacie:

Yaf(a)Ray 0.1.0 is a new raytracing render engine written from scratch, and it replaces YafRay 0.0.9. After two years of development, it already features a complete set of lighting and rendering options.
Yaf(a)Ray 0.1.0 can be used with official releases of Blender 3D. Participate in the forum and help us to improve it!
You can download Yaf(a)Ray 0.1.0 in the downloads section

btw. su na kybci aj nejaky blenderisti, ktorych to zaujima? :)