POV-Ray : Newsgroups : povray.general : unbiased rendering Server Time
23 Dec 2024 18:47:12 EST (-0500)
   unbiased rendering (Message 1 to 2 of 2)  
From: ted
Subject: unbiased rendering
Date: 15 May 2015 17:30:01
Message: <web.5556642f91c7716cbd552b450@news.povray.org>
hi
is the pov-ray unbiased render


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From: Alain
Subject: Re: unbiased rendering
Date: 15 May 2015 21:18:17
Message: <55569ad9@news.povray.org>

> hi
> is the pov-ray unbiased render
>
>

Short: No

Long:
It's a classical backware ray tracer that send rays from the camera 
toward the scene and return what it find as an image.

If you use the radiosity feature, it also compute the inter-diffuse 
reflection to determine the illumination and colour of each pixel.

If you use the photons feature, it perform a limited form of forward 
tracing where you need to sellect exactly witch object, or target, will 
be used as the first step of forward tracing from the light sources, and 
how they will interact. Secondary photons can reflect and be refracted 
by any refractive and relective object.
The camera can NEVER see the photons directly, only their effect on 
objects and, optionaly, through medias.

If you use the uberpov experimental renderer, you can get a mostly 
unbiased render using radiosity and adding the no_cache option.



Alain


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