[Bf-cycles] old volumetric patch rebased

Kel M kelvinshrek at gmail.com
Sun Dec 18 15:18:26 CET 2011

Hi, the node_shader_volume_bsdf_diffuse.c seems to be missing.

On Sat, Dec 17, 2011 at 11:24 PM, storm <kartochka22 at yandex.ru> wrote:
> Update, very annoying bug fixed in HG importance sampling function, i
> mixed "phi" angle and cosinus of angle, it make any render with HG
> assymmetric factor "g" toher thhen 0 wrong, now it looks much better
> evern with "g" close to extreme --1 or 1 values.
> Also I figured that Sobol based random generator must be used only once
> per dimension, and I add separate congruential generator even if
> __SOBOL__ definied. It useful for many sequential random number in
> volume iteration loop.
> Now with that bug fixed I going to clean patch to remove all #ifdefs
> used in bug hunting, i leave them for now because need more tests on
> real scenes, maybe week, to be sure that bug gone.
> В Пн., 12/12/2011 в 19:07 +0400, storm пишет:
>> Please ignore MTL related property and  kernel_mlt.c, it just joke, i am
>> too lazy to comment them out. Patch is snapshot of local current svn.
>> Nothing new, literally, except it rebased to latest Blender svn and
>> Density input now somewhat work, if Homogeneous check not set, you can
>> plug in some 3d procedural texture to play with woodcock algorithm.
>> Warning: woodcock constant hard coded to 0.95, so variable density
>> greater 0.95 do not work.
>> Just to be sure, i repeat: nothing MLT related in this patch, it is my
>> own stupid sandbox random lines of code.
>> Still waiting for new AMD drivers for linux, maybe after that i can do
>> something more useful. Patch work only on CPU if work at all.
>> _______________________________________________
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