In article <39EC8299.274E9873@schunter.etc.tu-bs.de>, 
chr### [at] gmxde wrote:

> according to Chris Huff there is a problem with glows using the 
> 'size' modifier interacting with other objects, but in your scene the 
> problem still exists when you avoid 'size'.  

This is right...don't use "size".

> After removing both 'size' and 'fade_power' i had no more any 
> problems, so those two things still seem to have bugs.

In the case of fade_power, more of a cheat in the algorithm, more like 
the way turbulence doesn't make 3D variations in the glow. This was just 
something I added to adjust the falloff of the final values, which makes 
it dependant on distance. The transparent object breaks the ray in two 
parts, and the second one is shorter...which makes the result different.

So: don't use "size" yet, it is buggy, and don't use "fade_power" if you 
want a remotely realistic image. If you want realism and 
flexibility...use media. :-)
I will eventually have new falloff functions with adjustable falloff 
amounts which should make fade_power unnecessary.

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

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