[Bf-cycles] old volumetric patch rebased

storm kartochka22 at yandex.ru
Sun Dec 18 16:20:28 CET 2011


My bad,forgot "svn add" command after last OpenCL try with vanilla
trunk.

В Вс., 18/12/2011 в 09:18 -0500, Kel M пишет:
> 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.
> >>
> >>
> >> _______________________________________________
> >> Bf-cycles mailing list
> >> Bf-cycles at blender.org
> >> http://lists.blender.org/mailman/listinfo/bf-cycles
> >
> >
> > _______________________________________________
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> > Bf-cycles at blender.org
> > http://lists.blender.org/mailman/listinfo/bf-cycles
> >
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