With my current project, I can take a one year cruise!!! At this point, I really think I'm gonna leave it. :-( I can't render the Neftys "VeryFrench Hair" with simulation of radiosity lights. My next chance is to delete some lights. PS: I made a quick tour of the Bryce manual and the Realworld Book (WOW, what a book!!)and didn't found anything. Thanks for the info.