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This commit significantly speeds up many of the attribute nodes when multiple threads are available in linear situations when parallelism cannot be achieved elsewhere. See the differential for a table of timing comparisons tested on a Ryzen 3700x. For an attribute with 4 million elements, the nodes were about 3 to 9 times faster. The changes are not exhaustive, other nodes could still be parallelized in the future. Also, it would be possible to further optimize the grain size in `parallel_for`, but I'd rather make sure it isn't too small. I tested some different values, but also relied on intuition-- increasing grain size for less complex operations and vice versa. Differential Revision: https://developer.blender.org/D11139
.. Keep this document short & concise, linking to external resources instead of including content in-line. See 'release/text/readme.html' for the end user read-me. Blender ======= Blender is the free and open source 3D creation suite. It supports the entirety of the 3D pipeline-modeling, rigging, animation, simulation, rendering, compositing, motion tracking and video editing. .. figure:: https://code.blender.org/wp-content/uploads/2018/12/springrg.jpg :scale: 50 % :align: center Project Pages ------------- - `Main Website <http://www.blender.org>`__ - `Reference Manual <https://docs.blender.org/manual/en/latest/index.html>`__ - `User Community <https://www.blender.org/community/>`__ Development ----------- - `Build Instructions <https://wiki.blender.org/wiki/Building_Blender>`__ - `Code Review & Bug Tracker <https://developer.blender.org>`__ - `Developer Forum <https://devtalk.blender.org>`__ - `Developer Documentation <https://wiki.blender.org>`__ License ------- Blender as a whole is licensed under the GNU General Public License, Version 3. Individual files may have a different, but compatible license. See `blender.org/about/license <https://www.blender.org/about/license>`__ for details.