nemesis nous illumina en ce 2008-10-30 22:44 -->
> Alain wrote:
>> fade_power controls the "shape" of the atenuation curve. This should 
>> normaly be set to 1 OR 1001. Both are correct. 1 is a linear 
>> atenuation 1001 is an exponential atenuation.
> 
> WTF?!
> 
> why 1001?!  I always used 2 and it seems to work...

fade_power 2 is good for the fading of a light source as it fades according the 
the square of the distance, or the light's energy is spread over the square of 
the radius. Twice the distance = one fourth the illumination, or the same 
illumination spread over four times the surface.

When you work with transparency, the atenuation is linear, thus fade_power 1. 
Twice the distance = twice the effect.

-- 
Alain
-------------------------------------------------
If at first you don’t succeed, try again. Then quit. No use being a damn fool 
about it.

Post a reply to this message