Hi Anton, I think it would make sense to look into Embree integration, there's plenty of work to do there. There's only a small chance we would not end up using it I expect. Other projects are fine as well, if you prefer something that is more self contained and doesn't require so much discussion / coordination.
Regards, Brecht. On Tue, Jan 30, 2018 at 11:38 PM, Антон Гавриков < gavrikovantonk...@gmail.com> wrote: > Hello, > > So, should I look in the direction of Embree integration according to these > points? > > 1. Update to Embree 3.0.0, of which a first beta was just released. This > > should allow us to build with an unpatched Embree. > > 2. If we decide that it’s needed, implement a solid line segment/cylinder > > primitive for Embree. Embree has flat (ribbon) line segments, flat curves > > and solid curves but not solid cylinders. > > 3. Reduce the amount of duplicated data. Ideally, Cycles keeps all the > > geometry data in its own buffers and Embree accesses it directly through > > pointers. That may require resolving race conditions in interactive > > rendering. > > 4. Extract BVH data from Embree and write GPU traversal code. > > 5. Find out if it’s possible in the latest Embree to do quaternion > > interpolation of motion transforms - the 2.x versions are still limited > to > > linear straight interpolation. If this isn’t there, motion blur quality > > will degrade. > > > > Once parity is reached, there are several features in Embree that could > > improve Cycles. Some of these may not work with the GPU: > > 6. Using Embree’s ray stream API for the CPU split kernel. > > 7. Embree’s built-in displacement. > > 8. Embree’s quad primitive. > > 9. Compare Embree’s subdivision implementation to Cycles’ and use it if > > it’s better. The on-demand cache could help reduce memory usage at the > > expense of performance. > > > > Or for now it is worthwhile to think about other projects from the list > before clarifying the details about the future of Embree. > > Regards, > Anton. > _______________________________________________ > Bf-committers mailing list > Bf-committers@blender.org > https://lists.blender.org/mailman/listinfo/bf-committers > _______________________________________________ Bf-committers mailing list Bf-committers@blender.org https://lists.blender.org/mailman/listinfo/bf-committers
