Nathan Kopp wrote:
> 
> Ummm.... may I suggest media?
> 
> Yes, media is slower.  That's because it can handle stuff like this.  Fog
> can work because it is uniform throughout so it only takes one calculation.
> Making it non-uniform means you have to use 'ray-marching' where you sample
> it at mutliple places along the way, which of course slows things down
> tremendously.  (Ground fog is a bit more complicated than constant fog, but
> not much more... still only one calculation per ray - no ray marching.)
> 
> -Nathan

  I am sorry Nathan but I do not like your reply. I wanted you to tell me
that it would be an easy feature change and will render much faster than
media will.

BUT !! Don't lie to me :-)

-- 
Ken Tyler

mailto://tylereng@pacbell.net

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