Wannes Malfait 47aca2b4c4 Nodes: Add a callback to check for valid socket type
This adds a callback to bNodeTreeType to check which socket types are
valid for the tree type. Function has been implemented for the normal
tree types, and can be implemented for custom node trees with python,
by adding a `classmethod` to the tree. However, only builtin socket
types are supported.

This is relevant for T87049, but it also has the advantage that it is
now clear which node trees support which sockets. Previously this
was assumed to be known by all developers.

Differential Revision: https://developer.blender.org/D10938
2021-04-29 23:36:46 -05:00
2021-04-28 18:27:47 -04:00
2021-03-26 16:15:02 +01:00
2010-10-13 14:44:22 +00:00

.. 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.
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