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`bvhtree_from_mesh_edges_create_tree` can actually leave the BVHTree NULL (e.g. if no edges are present). Now dont allocate `BVHTreeFromMesh` on the `SurfaceModifierData` at all in case the tree would be NULL anyways. Places like `get_effector_data` check for `SurfaceModifierData`- >`BVHTreeFromMesh` and dont try to stuff like getting a closest point on surface, which would crash as soon as BVHNodes would need to be accessed (from the NULL BVHTree). Maniphest Tasks: T88658 Differential Revision: https://developer.blender.org/D11443
.. 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.