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Hristo Gueorguiev 6bf4115c13 Cycles: Split kernel - sort shaders ...

Reduce thread divergence in kernel_shader_eval.

Rays are sorted in blocks of 2048 according to shader->id.

On R9 290 Classroom is ~30% faster, and Pabellon Barcelone is ~8% faster.

No sorting for CUDA split kernel.

Reviewers: sergey, maiself

Reviewed By: maiself

Differential Revision: https://developer.blender.org/D2598

2017-05-03 15:30:45 +02:00

2.5 KiB

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