ok, i'm doing some space battle scenes in bryce4, and i'm using cylinder lights for my phaser beams (with falloff turned off, infinite light, etc.). it looks great, but is there a way to make the infinite light stop when it hits something? i prefer the way the volumized light beams look to using stretched cylinders, so i'd like to keep using them (it took me six hours of screwing with it to get the perfect "phaser" look). am i overlooking something, or am i just plain stuck?