[Bf-cycles] Future of the non-progressive renderer and Cycles strand rendering

Brecht Van Lommel brechtvanlommel at pandora.be
Sat Jan 5 01:18:17 CET 2013

On Fri, Jan 4, 2013 at 10:05 PM, Nathan Vegdahl <cessen at cessen.com> wrote:
> Regarding hair pruning:
> I wonder if some kind of russian-roulette in the BVH traversal could
> work...?  And maybe scaling the alpha based on the number of
> near-nodes skipped.  Not sure if that would be too noticeable an
> approximation, or how it would affect noise, but just an idea.

You could do some fun stuff here, but I'm not sure we should try to
this kind of level of detail in the raytracer, better do stochastic
simplification before rendering then which also avoids the memory
usage. Also making the render result depend on the BVH structure is
something we should try to avoid I think.


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