Is there any chance that kpovmodeler could use this Render engine too? The primary reason I ask is that it can do radiosity over a cluster, unlike any form of povray that I have seen. http://www.coala.uniovi.es/~jandro/noname/ Has Radiosity and Caustics. Global Illumination - Sky Spheres. Mosix (cluster) compatible (multi threaded). XML scene description file. Very active development!