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The `render_color_index` skips attributes with different types and domains in order to give the proper order for the UI list. That is a different than an index in the group of all attributes. The most solid solution I could think of is exposing the name of the default color attribute. It's "solid" because we always address attributes by name internally. Doing something different is bound to create problems. It's also aligned with the design in T98366 and D15169. Another option would be to change the way the "attribute index" is incremented in Cycles. That would be a valid solution, but would be more complex and annoying. For consistency, I also exposed the name of the active color attribute the same way, though it isn't necessary to fix this particular bug. The properties aren't editable, that can come in 3.5 as part of D15169. Differential Revision: https://developer.blender.org/D16769
.. 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.