"Marc" <jac### [at] wanadoofr> wrote in message 
news:4527d21c@news.povray.org...
> I don't agree about fade power in water :
> daylight rays have to get twice (down and back up) through water before
> reaching your eye so double the depth quadruple the thickness

I think pov will simulate that implicitly anyway, because the shadow cast by 
the water onto stuff underneath tints the daylight falling on the underwater 
objects, then when we look at them through the water we get more tinting. 
But if we're looking at a flat coloured ambient object the amount of tinting 
just depends on it's distance from us.

Also I believe the power can be between 1 & 2 for realistic effects, since 
the particles of fog can occlude each other... or something. I remember 
figuring all this out once but the pov docs say between 1 & 2 so I'll defer 
to their judgement :)

Anyway if you want it to look totally right I suggest scattering media...

-- 
Tek
http://evilsuperbrain.com

Post a reply to this message