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This commit restores old metaball workaround which was forcing their update from a single thread. The root of the issue comes to the fact that metaball evaluation needs to access metaballs from duplilists, so they are properly polygonized with corresponding motherball which is outside of duplilist. In a more ideal world this will be implemented in a way that will not require iterating over all duplilists, but only through the ones which actually contain metaballs for the given motherball. In practice this ends up in a huge refactor in both relations builder (which meeds to see whether there are metaballs in duplilists without actually creating duplilist as it can not be done prior scene is evaluated) and in metaballs area which need to use new relations information. Additionally, metaball evaluation must become thread-safe, which is currently not a case with dupli-object matrices. There might be issues deeper in polygonization code which I am not aware of. Having this forced single-thread evaluation is same as Blender 2.79 was doing. Think it's better to have slower but simpler solution than to invest time in refactoring area which requires deeper design changes. Reviewed By: dfelinto Differential Revision: https://developer.blender.org/D6539
.. 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 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.