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2020-04-30Fix T75895: Unable to Compile Cycles on NAVI/LinuxJeroen Bakker
This patch will add some compiler hints to break unrolling in the nestled for loops of the voronoi node. Reviewed by: Brecht van Lommel Differential Revision: https://developer.blender.org/D7574
2020-04-28Fix T75432: Cycles progressive refine render slow with denoising dataBrecht Van Lommel
Only perform denoising prefilter for the last sample, not every sample.
2020-04-28Fix T76044: update Cycles to build with OSL 1.11 masterBrecht Van Lommel
2020-04-24Cleanup: remove unused arg, clang-formatCampbell Barton
2020-04-23Cleanup: clang-format, unused warningCampbell Barton
2020-04-22Fix T74423: Cycles rendering artifacts with CUDA 10.2Brecht Van Lommel
Work around what appears to be a compiler bug, just changing the code a bit without any functional changes.
2020-04-22Fix T75964: changing object's viewport display color does not updatePhilipp Oeser
cycles Caused by rB00466e756e33. While that commit sounds logical, Cycles uses is_updated_transform() to detect updates. Now introduce is_updated_shading() and use that on top. Maniphest Tasks: T75964 Differential Revision: https://developer.blender.org/D7493
2020-04-12UI: reorder adaptive sampling settings in order of importanceBrecht Van Lommel
2020-04-11Cycles/Optix: Support building the optix kernels on demand.Ray Molenkamp
CMake: `WITH_CYCLES_DEVICE_OPTIX` did not respect `WITH_CYCLES_CUDA_BINARIES` causing the optix kernel to be always build at build time. Code: `device_optix.cpp` did not count on the optix kernel not existing in the default location. For this to work, one should have before starting blender 1) working nvcc environment 2) Optix SDK installed and the OPTIX_ROOT_DIR environment variable pointing to it which is not set by default Differential Revision: https://developer.blender.org/D7400 Reviewed By: Brecht
2020-04-09Shading: add Roughness input to Noise and Wave texture nodesBartosz Moniewski
Currently in fractal_noise functions, each subsequent octave doubles the frequency and reduces the amplitude by half. This patch introduces Roughness input to Noise and Wave nodes. This multiplier determines how quickly the amplitudes of the subsequent octaves decrease. Value of 0.5 will be the default, generating identical noise we had before. Values above 0.5 will increase influence of each octave resulting in more "rough" noise, most interesting pattern changes happen there. Values below 0.5 will result in more "smooth" noise. Differential Revision: https://developer.blender.org/D7065
2020-04-08Fix T75288: crash in Cycles image loading with multithreaded shader compilationBrecht Van Lommel
2020-04-08Fix T75290: Cycles crash with out of bounds memory access in volume mesh buildBrecht Van Lommel
2020-04-08Fix T74572: adaptive sampling still not working correct with shader AOVsBrecht Van Lommel
2020-04-07Cleanup: refactor adaptive sampling to more easily change some parametersBrecht Van Lommel
No functional changes yet, this is work towards making CPU and GPU results match more closely.
2020-04-07Fix T74572: adaptive sampling not scaling AOVs correctlyBrecht Van Lommel
2020-04-07Revert "Fix T74572: adaptive sampling not scaling render passes correctly"Brecht Van Lommel
This reverts commit 82a8da0ec38a70efde4a91957824c67d0e60b8ad. It was completely wrong. Fixes T75388.
2020-04-03Fix T75287: other Cycles render passes wrong when using CryptomatteBrecht Van Lommel
2020-04-03Fix T74572: adaptive sampling not scaling render passes correctlyBrecht Van Lommel
2020-04-02Fix Cycles AVX unit test still failing to build with old GCCBrecht Van Lommel
2020-04-02Fix more build errors/warnings after recent AVX changesBrecht Van Lommel
Thanks to Sergey and Ray for the help identifying the problem.
2020-04-02Fix build error on Windows/Linux after recent AVX changesBrecht Van Lommel
2020-04-01Cycles: AVX implantation of Perlin noise.OmarSquircleArt
This patch adds an AVX implementation of Perlin noise in Cycles. An avxi type was also added as a utility based on the respective type in Intel Embree. Only 3D and 4D noise were implemented, there is no benefit for utilizing AVX in 1D and 2D noise. The SSE trilinear interpolation function was used in the AVX implementation because there is no benefit from using AVX in interpolating the last three dimensions. Differential Revision: https://developer.blender.org/D6680
2020-03-27Fix Optix build error after recent changesDaniel Santana
Differential Revision: https://developer.blender.org/D7253
2020-03-27Cleanup: Silence uninitialized variable warningCharlie Jolly
2020-03-26Mantaflow: remove reminents of high res smokeAaron Carlisle
It appears this slipped through the code review Reviewed By: sebbas Differential Revision: https://developer.blender.org/D6760
2020-03-26Cycles: Restore cycles_cubin_cc to working orderRay Molenkamp
Reviewed by: brecht pmoursnv Differential Revision: https://developer.blender.org/D7136
2020-03-26Cycles/Optix: Add CYCLES_OPTIX_TEST overrideRay Molenkamp
This works similarly to the CYCLES_OPENCL_TEST environment variable to allow testing on unsupported hardware. Note: like the OPENCL test override, this is for *testing* only and bug reports on unsupported hardware will *not* be accepted at this point in time.
2020-03-26Fix T74939: Random Walk subsurface appearance in OptiX does not match other ↵Patrick Mours
engines Random Walk subsurface scattering did look different with OptiX because transmittance is calculated based on the hit distance, but the OptiX implementation of `scene_intersect_local` would return the distance in world space, while the Cycles BVH version returns it in object space. This fixes the problem by simply skipping the object->world transforms in all the places using the result of `scene_intersect_local` with OptiX. Reviewed By: brecht Differential Revision: https://developer.blender.org/D7232
2020-03-25Cycles: limit number of processes compiling OpenCL kernel based on memoryBrecht Van Lommel
The numbers here can probably be tweaked to be better, but it's hard to predict and this should at least avoid excessive memory swapping. Fixes T57064.
2020-03-24Cycles: use OpenCL C 2.0 if available, to improve performance for AMDBrecht Van Lommel
Tested with AMD Radeon Pro WX 9100, where it brings performance back to 2.80 level, and combined with recent changes is about 2-15% faster than 2.80 in our benchmark scenes. This somehow appears to specifically address the issue where adding more shader nodes leads to slower runtime. I found no additional speedup by applying this to change to 2.80 or removing the new shader node code. Ref T71479 Patch by Jeroen Bakker. Differential Revision: https://developer.blender.org/D6252
2020-03-24Cycles: slightly improve OpenCL performance by reordering SVM enum valuesBrecht Van Lommel
Ref T71479
2020-03-24Cycles: work around OpenCL performance regression after AOVs and vector rotateBrecht Van Lommel
We appear to be hitting some limit where adding any amount of code causes a significant performance regression, no matter what it does. To work around that a new node level was added. Ref T71479
2020-03-24Cleanup: remove unused Cycles kernel feature flags, replace by node levelsBrecht Van Lommel
2020-03-21OpenCL: Bring back CYCLES_OPENCL_TEST overrideRay Molenkamp
Back in 2.79 you could either use the debug panel or an environment variable to override using OpenCL for unsupported hardware. Which was rather useful for developers when testing on NVidia just to be sure the CL kernels at-least build properly. This broke in rB949ab753bb2 This diff restores testing though the CYCLES_OPENCL_TEST environment variable. Differential Revision: https://developer.blender.org/D7202 Reviewers: brecht
2020-03-21Fix T73372: cryptomatte not filling last pass for odd number of levelsBrecht Van Lommel
Make logic consistent with the render pass creation in Python.
2020-03-20Fix T68370, T74973: Cycles cryptomatte not working when other passes are enabledBrecht Van Lommel
Solution found by Blazej Floch.
2020-03-20Fix T74345: missing albedo for Cycles principled hair BSDFBrecht Van Lommel
2020-03-20Fix Python error in Cycles baking panelBrecht Van Lommel
2020-03-19Fix Cycles crash in Windows debug mode with volumesBrecht Van Lommel
2020-03-19Cleanup: `make format` after SortedIncludes changeDalai Felinto
2020-03-18Fix (harmless) use of uninitialized variables in CyclesBrecht Van Lommel
2020-03-18Volumes: add render settings for volume datablockBrecht Van Lommel
* Space: volume density and step size in object or world space * Step Size: override automatic step size * Clipping: values below this are ignored for tighter volume bounds The last two are Cycles only currently. Ref T73201
2020-03-18Cycles: change volume step size controls, auto adjust based on voxel sizeBrecht Van Lommel
By default it will now set the step size to the voxel size for smoke and volume objects, and 1/10th the bounding box for procedural volume shaders. New settings are: * Scene render/preview step rate: to globally adjust detail and performance * Material step rate: multiplied with auto detected per-object step size * World step size: distance to steo for world shader Differential Revision: https://developer.blender.org/D1777
2020-03-18Cycles: support for rendering of new Hair object prototypeBrecht Van Lommel
Ref T68981
2020-03-18Cycles: support rendering new Volume object typeBrecht Van Lommel
Voxels are loaded directly from the OpenVDB grid. Rendering still only supports dense grid, so memory usage is not great for sparse volumes, this is to be addressed in the future. Ref T73201
2020-03-18Cycles: support for different 3D transform per volume gridBrecht Van Lommel
This is not yet fully supported by automatic volume bounds but works fine in most cases that will have mostly matching bounds. Ref T73201
2020-03-17Cleanup: process colorspace conversion with a 1D pixel arrayBrecht Van Lommel
No need to assume it's 2D or 3D.
2020-03-16Cycles: Fix bad escape character used for dotSergey Sharybin
2020-03-16Fix T74776: Cycles crash with missing image texture after recent changesBrecht Van Lommel
2020-03-16UI: Show decorators for lights when using CyclesWilliam Reynish
This matches Eevee, and also the rest of Blender.
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