POV-Ray : Newsgroups : povray.binaries.images : SSS with montecarlo path tracing Server Time
6 Nov 2024 06:21:21 EST (-0500)
  SSS with montecarlo path tracing (Message 1 to 6 of 6)  
From: fidos
Subject: SSS with montecarlo path tracing
Date: 24 May 2008 12:25:01
Message: <web.4838403f151ae76dd309f1e00@news.povray.org>
Hello,

A new play with sss.

Any comment wellcome.

Regards,
Fidos.


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From: stbenge
Subject: Re: SSS with montecarlo path tracing
Date: 24 May 2008 15:06:07
Message: <4838671f@news.povray.org>
fidos wrote:
> Hello,
> 
> A new play with sss.
> 
> Any comment wellcome.
> 
> Regards,
> Fidos.

Well, are you going to tell us the technique? Is the scene lighted with 
an area_light, or with a bright object? Is this technique part of a 
patch you've been working on? Inquiring minds want to know!

I'd like to see a more obvious demonstration, if you have time. An 
object brighter in color perhaps, with more contrast between lit and 
shadowed areas. Can this technique be optimized to render faster? (of 
course it can, they always can :)

Sam


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From: fidos
Subject: Re: SSS with montecarlo path tracing
Date: 24 May 2008 15:40:01
Message: <web.48386e61c9a2951cd309f1e00@news.povray.org>
"fidos" <fid### [at] wanadoofr> wrote:
> Hello,
>
> A new play with sss.
>
> Any comment wellcome.
>
> Regards,
> Fidos.

The same settings but without the reflection.

Fidos


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From: fidos
Subject: Re: SSS with montecarlo path tracing
Date: 24 May 2008 15:45:00
Message: <web.48386fb8c9a2951cd309f1e00@news.povray.org>
stbenge <stb### [at] hotmailcom> wrote:
> fidos wrote:
> > Hello,
> >
> > A new play with sss.
> >
> > Any comment wellcome.
> >
> > Regards,
> > Fidos.
>
> Well, are you going to tell us the technique? Is the scene lighted with
> an area_light, or with a bright object? Is this technique part of a
> patch you've been working on? Inquiring minds want to know!
It is based on a patch in progress
(http://pagesperso-orange.fr/fidos/MCPov/MCPov.html). The lighting come from
the sphere and a hdr picture (good feature of MegaPov).
>
> I'd like to see a more obvious demonstration, if you have time. An
> object brighter in color perhaps, with more contrast between lit and
> shadowed areas. Can this technique be optimized to render faster? (of
> course it can, they always can :)
The rendering was not too long, 'only' 4 hours on 4 cores of a q6600 !

Fidos.


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From: stbenge
Subject: Re: SSS with montecarlo path tracing
Date: 24 May 2008 16:57:57
Message: <48388155$1@news.povray.org>
fidos wrote:
> stbenge <stb### [at] hotmailcom> wrote:
>> Well, are you going to tell us the technique? Is the scene lighted with
>> an area_light, or with a bright object? Is this technique part of a
>> patch you've been working on? Inquiring minds want to know!
> It is based on a patch in progress
> (http://pagesperso-orange.fr/fidos/MCPov/MCPov.html). The lighting come from
> the sphere and a hdr picture (good feature of MegaPov).

This looks like a very promising patch!

>> I'd like to see a more obvious demonstration, if you have time. An
>> object brighter in color perhaps, with more contrast between lit and
>> shadowed areas. Can this technique be optimized to render faster? (of
>> course it can, they always can :)
> The rendering was not too long, 'only' 4 hours on 4 cores of a q6600 !

Um, *only* 4 hours? Yikes! It's probably worth it though, considering 
the potential quality of the render. I have that same CPU setup; I'll 
have to see if my results resemble yours.

Thanks,

Sam


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From: scott
Subject: Re: SSS with montecarlo path tracing
Date: 27 May 2008 02:42:58
Message: <483bad72@news.povray.org>
> It is based on a patch in progress
> (http://pagesperso-orange.fr/fidos/MCPov/MCPov.html).

Just downloaded that and gave it a shot - it's brilliant!  After just a few 
hours I got a perfectly smooth version of a scene that was causing a huge 
amount of problems with radiosity (bright artifacts, blotchiness etc).

I really hope something like this makes it into the official POV very soon.


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