[Radiance-general] Subsurface scattering in Radiance

[Greg Ward]

I'm not saying it couldn't be done.  I'm saying there is no one to do it or support such an addition given our current focus.  Some things are simply out of scope based on our application area, whatever users may want.  You are of course welcome to make such extensions yourself, though I might recommend working with Radzilla or (easier still) utilizing another free renderer that already has such capabilities.

I don't know the current status of the photon mapping add-on for certain.  Someone else will have to answer that.

Cheers,
-Greg

> From: T.Charles at maxfordham.com
> Date: December 11, 2013 9:38:35 AM PST
> 
> Thank you Greg,
> It is really useful to work with slightly translucent materials like marble.
> I was wondering if it could be modeled via an XML file as the BSDF is. It would be an additional dimension to the tensor tree representation and an additional material parameter (maybe 1 per dimension actually) to quantify the diffusion of light.
> Any thought ?
> Cheers,
> Thibault
> 
> PS: Is this photon map module included in the latest Radiance release ? If not, what is the best way to approach caustics ?
> 
> 
> 
> -----Greg Ward <gregoryjward at gmail.com> a écrit : -----
> A : Radiance general discussion <radiance-general at radiance-online.org>
> De : Greg Ward <gregoryjward at gmail.com>
> Date : 11/12/2013 17:17
> Objet : Re: [Radiance-general] Subsurface scattering in Radiance
> 
> I don't think photon mapping will handle this, either.  It's really outside the scope of an architectural rendering package.  Subsurface scattering needs to be implemented at a fundamental materials level, and involves gathering contributions from nearby a hit point in a geometry-aware fashion.  Not to say that it couldn't be done, but there's no real motivation to add it to Radiance.
> 
> Cheers,
> -Greg
> 
> > From: Rob Guglielmetti <rob.guglielmetti at gmail.com>
> > Date: December 11, 2013 9:11:40 AM PST
> > 
> > I think you're gonna want to dig into the archives on the photon map module that Roland Schregele wrote. 
> > 
> > - Rob
> > 
> > On Dec 11, 2013, at 8:59 AM, T.Charles at maxfordham.com wrote:
> > 
> >> Dear all,
> >> Has anyone come across subsurface scattering in Radiance ? Is it possible, under consideration ?
> >> Any relevant documentation ?
> >> Thanks a lot,
> >> Regards,
> >> Thibault
> >> 
> >> 
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