more renderers ... (just in case you can't get enough!! ;) ) please check this one out - source and bin (GPL) features: dispersion, volumetrics, volume caustics and multiple scattering, QMC (Quasi-Monte Carlo) , gi etc http://www.renderedrealities.net/portfolio/renderbitch.html if you are bored you can also look at this one: for linux und windows ... but i am bot sure about the license ... free (trial?) for non-commercial (results too) http://www.lightflowtech.com/ dom