Sergey Sharybin 9d50175b6c Cycles: Fix correlation issues in certain cases ...

There were two cases where correlation issues were obvious:

- File from T38710 was giving issues in 2.78a again
- File from T50116 was having totally different shadow between
  sample 1 and sample 32.

Use some more simplified version of CMJ hash which seems to give
nice randomized value which solves the correlation.

This commit will break all unit test files, but it's a bug fix
so perhaps OK to commit this.

This also fixes T41143: Sobol gives nonuniform noise

Proper science paper about hash function is coming.

Reviewers: brecht

Reviewed By: brecht

Subscribers: lukasstockner97

Differential Revision: https://developer.blender.org/D2385

2016-12-01 14:19:15 +01:00

..

bvh

Cycles: Use new SSE version of offset calculation for all QBVH flavors

2016-10-25 15:27:50 +02:00

closure

Fix T50075: Assert during debug render of hair_geom_transmission.blend

2016-12-01 12:11:11 +01:00

geom

Cycles: Fix missing underscore in geom_object.h

2016-11-03 12:38:00 +01:00

kernels

Cycles: Enable SSE math optimization for AVX kernels

2016-10-25 16:10:47 +02:00

osl

Cycles: Implement texture coordinates for Point, Spot and Area Lamps

2016-10-29 19:24:08 +02:00

shaders

Cycles: Add smoothing option to the Brick Texture

2016-10-30 02:16:22 +02:00

split

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

svm

Cycles: Fix T49901: OpenCL build error after recent light texture coordinate commit

2016-11-03 03:08:14 +01:00

CMakeLists.txt

Cycles: Initialize the RNG state from the kernel instead of the host

2016-10-30 11:51:20 +01:00

kernel_accumulate.h

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

kernel_bake.h

Cycles: Deduplicate AO calculation

2016-10-31 00:40:59 +01:00

kernel_camera.h

Cycles: Fix shadowing variable which also causes use of uninitialized variable

2016-10-24 14:04:31 +02:00

kernel_compat_cpu.h

Cycles: Add new avxf vectorized data type

2016-10-12 13:54:13 +02:00

kernel_compat_cuda.h

Fix Cycles CUDA performance on CUDA 8.0.

2016-10-03 22:15:25 +02:00

kernel_compat_opencl.h

Fix Cycles CUDA performance on CUDA 8.0.

2016-10-03 22:15:25 +02:00

kernel_debug.h

Cycles: Add debug pass which shows number of instance pushes during camera ray intersection

2015-06-12 00:12:03 +02:00

kernel_differential.h

Cycles: OpenCL kernel split

2015-05-09 19:52:40 +05:00

kernel_emission.h

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

kernel_film.h

Cycles: Use native saturate function for CUDA

2015-04-28 00:38:32 +05:00

kernel_globals.h

Cycles: Support half and half4 textures.

2016-06-19 17:31:16 +02:00

kernel_image_opencl.h

Cycles: Cleanup, style

2016-10-24 12:26:12 +02:00

kernel_jitter.h

Cycles: Fix correlation issues in certain cases

2016-12-01 14:19:15 +01:00

kernel_light.h

Cycles: Implement texture coordinates for Point, Spot and Area Lamps

2016-10-29 19:24:08 +02:00

kernel_math.h

Cleanup: Move texture definitions to util, to avoid bad level include.

2016-04-15 23:02:44 +02:00

kernel_montecarlo.h

Cycles code refactor: minor refactoring and comments for volume code.

2014-03-29 13:03:49 +01:00

kernel_passes.h

Atomics: Make naming more obvious about which value is being returned

2016-11-15 12:16:26 +01:00

kernel_path_branched.h

Cycles: Add comments to endif directives

2016-11-10 19:50:23 -05:00

kernel_path_common.h

Cycles: Initialize the RNG state from the kernel instead of the host

2016-10-30 11:51:20 +01:00

kernel_path_state.h

Fix T49078: Cycles tries to render volume from another render layer when camera is in volume

2016-08-25 10:55:59 +02:00

kernel_path_surface.h

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

kernel_path_volume.h

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

kernel_path.h

Cycles: Add comments to endif directives

2016-11-10 19:50:23 -05:00

kernel_projection.h

Fix T49846: OpenCL rendering compilation failure

2016-10-29 20:06:52 +02:00

kernel_queues.h

Cycles: Code cleanup in split kernel, whitespaces

2015-07-03 11:03:56 +02:00

kernel_random.h

Cycles: Fix correlation issues in certain cases

2016-12-01 14:19:15 +01:00

kernel_shader.h

Cycles: Fix T49901: OpenCL build error after recent light texture coordinate commit

2016-11-03 03:08:14 +01:00

kernel_shadow.h

Fix Cycles CUDA performance on CUDA 8.0.

2016-10-03 22:15:25 +02:00

kernel_subsurface.h

Cycles: Get rid of ifdef-ed noinline policy

2016-10-12 12:15:24 +02:00

kernel_textures.h

Fix Cycles OpenCL textures after recent CUDA fix.

2016-08-15 16:28:48 +02:00

kernel_types.h

Cycles: Add optional probabilistic termination of light samples based on their expected contribution

2016-10-30 11:31:28 +01:00

kernel_volume.h

Cycles: Fix correlation issues in certain cases

2016-12-01 14:19:15 +01:00

kernel_work_stealing.h

Cycles: Cleanup, indent nested preprocessor directives

2016-03-25 13:55:42 +01:00

kernel.h

Cycles: Deduplicte CPU kernel declaration and definition code

2015-12-30 17:54:02 +05:00