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Light groups are a type of pass that only contains lighting from a subset of light sources. They are created in the View layer, and light sources (lamps, objects with emissive materials and/or the environment) can be assigned to a group. Currently, each light group ends up generating its own version of the Combined pass. In the future, additional types of passes (e.g. shadowcatcher) might be getting their own per-lightgroup versions. The lightgroup creation and assignment is not Cycles-specific, so Eevee or external render engines could make use of it in the future. Note that Lightgroups are identified by their name - therefore, the name of the Lightgroup in the View Layer and the name that's set in an object's settings must match for it to be included. Currently, changing a Lightgroup's name does not update objects - this is planned for the future, along with other features such as denoising for light groups and viewing them in preview renders. Original patch by Alex Fuller (@mistaed), with some polishing by Lukas Stockner (@lukasstockner97). Differential Revision: https://developer.blender.org/D12871
.. 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.