Hi HG, Only if you want excruciatingly long renders would you use the volumetric world function. however there are other ways to achieve the effect, one is encompassing you "Visible " scene with a sphere and applying a volumetric texture. there are a few tutorials around I'll try to dig one up for you. also if your using a registered version of Bryce 4, you can download the patch from www.metacreations.com and while your there download the new volumetric presets. there slow(as are all volumetric textures and lights) but they're pretty nice. Nice Image so far. Hawkfyr

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