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As also explained in D6134, in most case of Stretch To usage in rigs, it is desirable to use swing rotation, either via the old method of pairing the constraint with Damped Track, or via the Swing rotation type introduced in 2.82. This is for instance true for all usages of the constraint in Rigify. The reason can be understood by realizing that unlike order- dependent euler rotations, swing is not biased to an axis, and isn't affected by gimbal lock effects at merely 90 degrees of rotation (it has only one singularity at 180 degrees). Thus it makes sense to change the default for newly created constraints to the Swing mode. This has no backward compatibility concerns except for old tutorials and rig generation scripts. Differential Revision: https://developer.blender.org/D12643
.. 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.