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This implements four optimizations in the Set Position node: * Check whether the position input is the current position and ignore it if it is. This results in a speedup when only the Offset input is used. * Use multi-threading when copying to computed values to the position attribute. All geometry types benefit from this. * Use devirtualization for the offset and position input. This optimizes the common case that they are either single values or computed in the fly in a span. * Write to `Mesh->mvert` directly instead of creating a temporary span. This makes setting mesh vertex positions even more efficient. In my simple benchmark I'm using a White Noise node to offset the position of 1,000,000 vertices. The speed is `20 ms -> 4.5 ms` in the multi-threaded case and `32 ms -> 22 ms` in the single-threaded case.
.. 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.