Brecht Van Lommel 90d4b823d7 Cycles: use defensive sampling for picking BSDFs and BSSRDFs. ...

For the first bounce we now give each BSDF or BSSRDF a minimum sample weight,
which helps reduce noise for a typical case where you have a glossy BSDF with
a small weight due to Fresnel, but not necessarily small contribution relative
to a diffuse or transmission BSDF below.

We can probably find a better heuristic that also enables this on further
bounces, for example when looking through a perfect mirror, but I wasn't able
to find a robust one so far.

2017-09-20 19:38:08 +02:00

..

kernel_branched.h

Code cleanup: store branch factor in PathState.

2017-09-13 15:24:14 +02:00

kernel_buffer_update.h

Code cleanup: abstract shadow catcher logic more into accumulation code.

2017-09-13 15:24:14 +02:00

kernel_data_init.h

Cycles: optimize CPU split kernel data init.

2017-08-12 20:43:34 +02:00

kernel_direct_lighting.h

Code cleanup: deduplicate some branched and split kernel code.

2017-09-13 15:24:14 +02:00

kernel_do_volume.h

Code cleanup: store branch factor in PathState.

2017-09-13 15:24:14 +02:00

kernel_enqueue_inactive.h

Cycles: Add kernel to enqueue inactive rays

2017-06-10 03:51:18 -04:00

kernel_holdout_emission_blurring_pathtermination_ao.h

Code cleanup: remove hack to avoid seeing transparent objects in noise.

2017-09-20 19:38:08 +02:00

kernel_indirect_background.h

Code cleanup: deduplicate some branched and split kernel code.

2017-09-13 15:24:14 +02:00

kernel_indirect_subsurface.h

Cycles: Branched path tracing for the split kernel

2017-05-02 14:26:46 -04:00

kernel_lamp_emission.h

Code cleanup: deduplicate some branched and split kernel code.

2017-09-13 15:24:14 +02:00

kernel_next_iteration_setup.h

Code cleanup: move rng into path state.

2017-08-19 18:14:16 +02:00

kernel_path_init.h

Fix panorama render crash with split kernel, due to incorrect buffer pointer.

2017-08-22 00:41:07 +02:00

kernel_queue_enqueue.h

Fix T51950: Abnormally long Cycles OpenCL GPU render times with certain panoramic camera settings

2017-07-03 18:26:19 +02:00

kernel_scene_intersect.h

Code cleanup: deduplicate some branched and split kernel code.

2017-09-13 15:24:14 +02:00

kernel_shader_eval.h

Cycles: use defensive sampling for picking BSDFs and BSSRDFs.

2017-09-20 19:38:08 +02:00

kernel_shader_setup.h

Cycles: Split kernel - sort shaders

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

kernel_shader_sort.h

Cycles: Cleanup, space after keyword

2017-08-07 14:47:51 +02:00

kernel_shadow_blocked_ao.h

Code cleanup: move rng into path state.

2017-08-19 18:14:16 +02:00

kernel_shadow_blocked_dl.h

Fix T52433: Volume Absorption color tint

2017-09-05 15:48:34 +02:00

kernel_split_common.h

Code cleanup: abstract shadow catcher logic more into accumulation code.

2017-09-13 15:24:14 +02:00

kernel_split_data_types.h

Code cleanup: store branch factor in PathState.

2017-09-13 15:24:14 +02:00

kernel_split_data.h

Cycles: Split kernel SSS & Volume data definitions cleanup

2017-05-05 13:42:26 +02:00

kernel_subsurface_scatter.h

Cycles: slightly improve BSDF sample stratification for path tracing.

2017-09-20 19:38:08 +02:00