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This implements a merge by distance operation for point clouds. Besides the geometry input, there are two others-- a selection input to limit the operation to certain points, and the merge distance. While it would be a reasonable feature, the distance does not support a field currently, since that would make the algorithm significantly more complex. All attributes are merged to the merged points, with the values mixed together. This same generic method is used for all attributes, including `position`. The `id` attribute uses the value from the first merged index for each point. For the implementation, most of the effort goes into creating a merge map to speed up attribute mixing. Some parts are inherently single-threaded, like finding the final indices accounting for the merged points. By far most of the time is spend balancing the KD tree. Mesh support will be added in the next commit. Differential Revision: https://developer.blender.org/D13649
.. 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.