In article <39d4843d@news.povray.org>, Warp <war### [at] tagpovrayorg> 
wrote:

>   Or making povray consider a glow to be an object.

That is my goal...to make them imitate objects, like light_sources do. 
Of course, things like "hollow" and "open" would be meaningless to 
them...but they will eventually be useable in CSG's and variables.


>   If there are lots of glows in the scene, wouldn't they benefit from
> bounding objects (perhaps spheres could be the best)?

No more than plane objects or sky_spheres would...the "realistic" glow 
types are "infinite". They are not objects, but effects which depend on 
the angle and proximity of the ray to a point, which makes bounding a 
bit...tricky. However, my most recent version does include a "radius" 
feature which allows you to cut off calculation beyond a certain 
distance. But this can often make a large difference in the output, 
especially when using large numbers of glows, and isn't useful as an 
optimization technique for small numbers.

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

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