[Bf-cycles] Biased Rendering

[gandalf3]

There's a gsoc project going on now
http://wiki.blender.org/index.php/User:DingTo/GSoC_2014/Proposal

On 07/03/14 13:19, Mafteiu Scai Vlad wrote:
> So what's the plan for the speed up?
>
> Vlad Mafteiu Scai
>
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> 2014-07-03 22:38 GMT+03:00 Sergey Sharybin <sergey.vfx at gmail.com 
> <mailto:sergey.vfx at gmail.com>>:
>
>     While biased rendering speedup is nice to have, out first goal is
>     to speed up unbiased, which is much more crucial for rendering
>     movies. That would also give benefits in cases when the scene is
>     static and then we can look into optimizing specific cases later
>     (if speed would still be an issue).
>
>
>     On Wed, Jul 2, 2014 at 8:10 PM, Mafteiu Scai Vlad
>     <mafteiuscaivlad at gmail.com <mailto:mafteiuscaivlad at gmail.com>> wrote:
>
>         There were some people asking for biased rendering on the
>         octane forums as well. I guess there ain't no such things as
>         fast enough.
>
>         Vlad Mafteiu Scai
>
>         Mobile: +45-5333-30-67 <tel:%2B45-5333-30-67>
>
>         /Mobile UI Designer, 3D Architectural Vizualizer & Product
>         Visualization Artist
>         /
>
>         Email: mafteiuscaivlad at gmail.com
>         <mailto:mafteiuscaivlad at gmail.com>
>
>         Portfolio: http://www.behance.net/motionseadesigns
>
>
>         This e-mail is confidential and is intended solely for the use
>         of the recipient.  If you are not the intended recipient, be
>         advised that you have received this e-mail in error and that
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>
>         2014-07-02 16:54 GMT+03:00 storm <kartochka22 at yandex.ru
>         <mailto:kartochka22 at yandex.ru>>:
>
>             ? ??, 02/07/2014 ? 16:24 +0300, Mafteiu Scai Vlad ?????:
>             > What about an option for spectral rendering?
>             >
>             > Vlad Mafteiu Scai
>             >
>
>             Basic Spectral render is 10 lines, it simplest thing that
>             still not in
>             trunk. One additional sampling dimension, and apply black
>             body curve
>             sampled by that to actual color before  store to pixel buffer.
>
>             Some BSDF need to respect it, as glass, and current
>             wavelenght must be
>             exposed to shaders, it take 10 more lines of code. I have
>             done it long
>             time ago.
>
>             The problem is it hardly to be usable (as volumetrics
>             things btw), only
>             few extreme scenes with diamonds on floor. And in turn,
>             most cool part
>             is caustic, it take looong time to converge even with MLT.
>
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>
>     -- 
>     With best regards, Sergey Sharybin
>
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-- 
-gandalf3

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