[Bf-cycles] Volumetric patch update

Brecht Van Lommel brechtvanlommel at pandora.be
Thu Dec 13 09:04:06 CET 2012


Ok, it's your choice. I don't mind necessarily if a lot of rewriting
still happens in svn, as long as it's mostly isolated and doesn't
affect the rest of the code too much. Anyway, good to hear you're
making progress, this bidir weighting stuff is extremely complicated


On Wed, Dec 12, 2012 at 7:18 PM, storm <kartochka22 at yandex.ru> wrote:
> Hi.
> I fear that there must be at least one big rewritting from scratch, and
> any cvs will be not useful because difference will be high. That code is
> more like "see now, i can write bidir render too" than real working
> example. I have most features resolved in mind, but many still too
> early. One is that use one universal single path weight function, as
> Luxrender and other, maybe with many parameters, but current state where
> it duplicated in many places is awful. Other is more clean camera and
> light evaluators and samplers, it hacked so badly, it is leftover of my
> early attempt to get proper camera pdf, spreaded over all kernel_mlt.c .
> Logic how to serve perfect mirrors and transparent surfaces is very
> complicated too, need to invent something simple and manageable.
> In other words, for me it is like tool to do real test "Path tracer vs
> Bidirectional tracer", to answer question, is Arnold way is better, or
> there is potential to bidirectional and maybe more complicated sampling
> technic (some volume as sampled domain?).
> I think i can get close to git/svn ready state in 2 months, will see.
> Last little success with MIS give me boost in hacking, as many test
> scenes start looking better.
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