ingo <ing### [at] homenl> wrote:

> in <3aeef957@news.povray.org> Geoff Wedig wrote:

>> Yeah.  Maybe try it with no light sources at all, and ambient set
>> to 0. That would give a good idea exactly how much radiosity is
>> doing in different cases.
>> 

>  Is this what you mean. Radiosity data gathering passage, one white 
> light_source and a sky:
> pigment {gradient y color_map {[0, rgb 0.6] [1, rgb 1]}}
>  Rendering passage no light, no sky.

Exactly.  However, I didn't realize that radiosity makes standard lighting    
irrelevant, which it obviously does, or the objects wouldn't be so bright.    
I thought it was just an 'extra' light that was added when the color was      
determined.                                                                   
                                                                              
So I learned something from the pic, at least. ;)                             
                                                                              
Geoff

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