I think a more general feature would be a "distance" pattern, which 
would sort of use a z-buffer to get the pattern values. You could then 
use the existing camera normal feature with a normal controlled with the 
distance pattern to get the same effect.

There could be two variations of this pattern: distance from camera, and 
distance from start of ray.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

<><

Post a reply to this message