Jan Dvorak nous apporta ses lumieres en ce 2007/11/13 00:25:
> Alain napsal(a):
>> Jan Dvorak nous apporta ses lumieres en ce 2007/11/11 05:48:
>>> Hello,
>>>  When I use double_illuminate in a radiosity scene it does nothing 
>>> (it does get double_illuminated by light_sources).
>>> Here's a scene to illustrate:
>>>
>>> default{finish{ambient 0}}
>>> camera{location <3,4,5> look_at 0}
>>> polygon{5,x,y,-x,-y,x pigment{rgb 1}double_illuminate translate  z}
>>> polygon{5,x,y,-x,-y,x pigment{rgb 1}double_illuminate translate -z}
>>> background{rgb z}
>>> global_settings{radiosity{}}
>>> sphere{-y/2,0.5 texture{pigment{rgb y}finish{ambient 10 diffuse 0}}}
>>> light_source{y/2,rgb x}
>>>
>>> Is it a bug or it is intentional?
>> Working as expected.
>> The polygons are double_illuminate be the light_source (red), whitch 
>> contribute on both faces.
>> They are lighted in blue from the background, giving that magenta tint.
>> The faces near the high ambient grees sphere are illuminated in green. 
>> They are also affected by the other polygon, lighted in red, and, 
>> weekly, the blue background.
>>
> 
> As for MegaPOV 1.2.1 @ WinXP the front square doesn't get doubly 
> illuminated by the green sphere. Can you post your configuration, please?
It's not double_illuminated by radiosity, and sould'nt be.

-- 
Alain
-------------------------------------------------
You know you've been raytracing too long when you've convinced your boss that 
raytracing is really an integral part of your job title (and you really don't 
work in a position that requires it).
Quietly Watching

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