POV-Ray : Newsgroups : povray.binaries.images : my pool table : Re: my pool table Server Time
1 Aug 2024 10:12:41 EDT (-0400)
  Re: my pool table  
From: Alain
Date: 13 Aug 2008 10:23:28
Message: <48a2ee60$1@news.povray.org>
Christian Froeschlin nous illumina en ce 2008-08-12 12:10 -->
> Warp wrote:
> 
>>   (Let me guess: You rendered this with radiosity only? Radiosity cannot
>> simulate specular highlights, so surfaces get a rather dull finish.
> 
> Hmm, if you use only radiosity with high ambient objects instead
> of light sources, wouldn't they reflect in the sphere without need
> for special highlights?
> 
> Of course, there should also be a lamp directly overhead here.

Only actual light_source can give phong os specular highlights.

If you want highlights from high ambient illumination in a pure radiosity scene, 
you need some reflection, preferably blured reflection.
If you have several objects sith blured reflection reflecting in each other, you 
can use a little trick to get it to render faster:

Enclose every object with the blured reflection with a very slightly larger copy 
with no_image, no_shadow and a non-blury reflection. Don't forget to also add 
interior_texture{rgbt 1} to the outer object. Direct view, you see the object 
with the blured reflection, but in the reflections, you see the one with the 
no_image and simple reflection.

-- 
Alain
-------------------------------------------------
Light travels faster than sound. That is why some people appear bright until you 
hear them speak.


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