Try this instead of spray rendering. If you have an object say a stone that looks great until Bryce's final pass, select the object, click on the "A" for attributes, hold the "Ctrl" and "Shift" keys down, then click the check mark next to the X in the Atributes window. This will prevent the anti-alais from smoothing out the object. This works well for walls, stones, and other rough textures that Bryce's anti-alais feature tends to blur. It won't work on a Bryce sky setting, but will on a cloud plane. JAS