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2022-09-02Cleanup: refactoring of kernel film function names and organizationBrecht Van Lommel
2022-09-01Cleanup: minor cleanups for sample pattern codeBrecht Van Lommel
2022-09-01Cycles: remove old Sobol pattern, simplify sampling dimensionsBrecht Van Lommel
The multi-dimensional Sobol pattern required us to carefully use as low dimensions as possible, as quality goes down in higher dimensions. Now that we have two sampling patterns that are at least as good, there is no need to keep it around and the implementation can be simplified. Differential Revision: https://developer.blender.org/D15788
2022-07-15Cycles: refactor rays to have start and end distance, fix precision issuesBrecht Van Lommel
For transparency, volume and light intersection rays, adjust these distances rather than the ray start position. This way we increment the start distance by the smallest possible float increment to avoid self intersections, and be sure it works as the distance compared to be will be exactly the same as before, due to the ray start position and direction remaining the same. Fix T98764, T96537, hair ray tracing precision issues. Differential Revision: https://developer.blender.org/D15455
2022-07-14Cleanup: replace state flow macros in the kernel with functionsBrecht Van Lommel
2022-02-11Cycles: use SPDX license headersBrecht Van Lommel
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
2021-11-11Cycles: Add sample offset optionAndrii
This patch exposes the sampling offset option to Blender. It is located in the "Sampling > Advanced" panel. For example, this can be useful to parallelize rendering and distribute different chunks of samples for each computer to render. --- I also had to add this option to `RenderWork` and `RenderScheduler` classes so that the sample count in the status string can be calculated correctly. Reviewed By: leesonw Differential Revision: https://developer.blender.org/D13086
2021-10-26Cycles: remove prefix from source code file namesBrecht Van Lommel
Remove prefix of filenames that is the same as the folder name. This used to help when #includes were using individual files, but now they are always relative to the cycles root directory and so the prefixes are redundant. For patches and branches, git merge and rebase should be able to detect the renames and move over code to the right file.