POV-Ray : Newsgroups : povray.binaries.images : LanuHum Global Test image : Re: LanuHum Global Test image - wip 4 Server Time
30 Jul 2024 10:20:55 EDT (-0400)
  Re: LanuHum Global Test image - wip 4  
From: clipka
Date: 12 Jan 2014 12:53:02
Message: <52d2d67e$1@news.povray.org>
Am 12.01.2014 17:11, schrieb LanuHum:
> Thomas de Groot <tho### [at] degrootorg> wrote:
>
>>
>> Over all, I am well satisfied but before going for the final render I
>> would like your opinions.
>>
>> Thomas
>
> I don't understand, what is reflected in a mirror in a floor? From what there
> the washed-away light spot?

 From what I understand, that's blurred reflections on the floor tiles, 
using an approach dubbed "micronormals": You use standard specular 
reflection on a texture, but also add some normal perturbation (using a 
pattern with some randomness), scaled so small that the structure is 
smaller than the image resolution; last not least you also make sure 
there is sufficient oversampling (often via a bit of focal blur, or 
plenty of anti-aliasing; sometimes it is also done by using an average 
texture comprised of countless duplicates of the base texture with 
random differences in the normal perturbation).


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