[Bf-committers] GSoC 2018 BVH8

Brecht Van Lommel brechtvanlommel at pandora.be
Mon Jan 29 18:58:40 CET 2018

Hi Anton,

We're planning to move to Embree, so improving our existing BVH builder and
traversal is not the best use of time.

However a lot of work is still needed to get the Embree integration stable,
and I imagine whatever the state will be this summer, there will be a lot
room for improvement. Finding optimizations in the integration, memory
usage reductions, etc. Some of the bigger topics would be:
* Use Embree for building the GPU BVH, so we can remove our own builder.
* For subdivision surfaces, implement more memory efficient grid primitive
to intersect directly.
* Optimizations for tracing short rays on a single object for subsurface
scattering, bevel, curvature.

Stefan, do you have an idea about which tasks will be open still this


On Sun, Jan 28, 2018 at 11:07 PM, Антон Гавриков <
gavrikovantonkapi at gmail.com> wrote:

> Hello, I worked on this (https://developer.blender.org/D2875) project as a
> summer intern in Intel. I would like to know if there is any interest in
> working on this project in GSoC 2018. Or maybe there are any similar tasks
> to optimize Cycles for new architectures.
> Regards,
> Anton.
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