[Bf-cycles] volumetric-mlt-spectral status

Wei-Cheng Sun weicheng.sun at gmail.com
Wed Feb 20 14:30:42 CET 2013

Maybe you can take a look at Mitsuba Renderer, It has a good solution for
solving specular transport case.

On Wed, Feb 20, 2013 at 3:31 AM, storm <kartochka22 at yandex.ru> wrote:

> As maybe some interested people can notice, recently i posting updates
> in longer intervals. The reason is i trying to solve perfect mirror and
> transparent surfaces weights. I was wrongly tink that it is trivial to
> fix (trying to focusing to only flat
> diffusion/glossy_with_non_zero_roughness), postpone that, and only
> recently notice that pinhole perspective camera have same issue, and my
> current code making wrong boost to light tracer samples (started from
> light), making final image worse then PT and even worse then w/o MIS at
> all.
> So, i really MUST to solve that, as even w/o any mirror /transparent
> material, any scene will have issues.
> The good news, is that when i make MIS weight offset manually (some ugly
> hackish black magic around debug_0 value ), result is somewhat
> comparable with what i seen Maxwell test scene, i mean not
> speed/quality, but overall feeling how noise converging near hard
> places.
> Currrently i trying to play with (L|D)S*DD*DE notation, better study how
> it related to path pdf, and other related things. Have some ideas how to
> skip unrelated bounce pdf from final, but far from real results.
> Damn Maxwell yellow juice material make me pissed off. (cannot resist
> and have download demo maxwell packet, trying basic "pyramid on floor"
> scenes) For a minute have strong feeling to fire disassembler to see how
> it do that ^^. But it is dark side way, and i doubt there is something
> unknown used, as arnold or many other, that is just good polished
> implenentation of well known algorithms.
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