Mitsuba is a research-oriented rendering system in the style of PBRT, from which
it derives much inspiration. It is written in portable C++, implements unbiased
as well as biased techniques, and contains heavy optimizations targeted towards
current CPU architectures. Mitsuba is extremely modular: it consists of a small
set of core libraries and over 100 different plugins that implement
functionality ranging from materials and light sources to complete rendering
algorithms.
In comparison to other open source renderers, Mitsuba places a strong emphasis
on experimental rendering techniques, such as path-based formulations of
Metropolis Light Transport and volumetric modeling approaches. Thus, it may be
of genuine interest to those who would like to experiment with such techniques
that haven't yet found their way into mainstream renderers, and it also provides
a solid foundation for research in this domain.

http://www.mitsuba-renderer.org/

The complete Souce code is there available.
To use it for Full spectral Rendering, it must be compiled with a Setting
SPECTRAL=(number of Light Fractions).

Bad Luck i do not have VS 2010 .. if anybody can compile a Spectral version,
drop me a note here.

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> Bad Luck i do not have VS 2010 ..

You can download the Community edition for free from MS - that allows 
you to do pretty much everything the Pro version does apart from the 
Team Foundation stuff:

https://www.visualstudio.com/en-us/products/compare-visual-studio-2015-products-vs.aspx

Good luck...

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scott <sco### [at] scottcom> wrote:
> > Bad Luck i do not have VS 2010 ..
>
> You can download the Community edition for free from MS - that allows
> you to do pretty much everything the Pro version does apart from the
> Team Foundation stuff:
>
>
https://www.visualstudio.com/en-us/products/compare-visual-studio-2015-products-vs.aspx
>
> Good luck...

I would need the luck and it wqill fill my computer with mostly unused stuff. I
guess i wait for somebody who knows how to use it :-)

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Here is a download Link in case somebody else wants to try it, wether to test it
or to get inspiration from it.

http://www.fa2.de/download/mitsuba_ss30.zip

PS: Before giving something to download, as always i have tested the file with
Virustotal and from that standpoint its certified clean.

Get it soon, i do not guarantee that this link will be valid forever ...

SHA256: 3edb082d811a51cadaa2e43dd5571a6b5a7fac95e65b91845b5a031e61d8b8bb
Dateiname: mitsuba_ss30.zip
Erkennungsrate: 0 / 53
Analyse-Datum: 2016-01-17 21:39:51 UTC ( vor 1 Minute )

For Details see ...
http://www.luxrender.net/forum/viewtopic.php?f=17&t=12630

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