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Currently render passes in the draw manager (eevee) must be predefined in the render result. This patch would ask the render engine for the render passes it needs, and create these as a preparation step during rendering. This allows any draw engine to define more complex render passes setup. Render passes can only be added before the call to `RE_engine_begin_result`. `RE_engine_begin_result` makes a full copy of the render passes. During rendering the render engines renders to the duplicated passes. `RE_engine_end_result` syncs the data back to the original render passes, but only if the passes existed in the original render result. Currently we work-around this issue by registering the passes in `render_result_new`. This is legacy blender internal structure and should be avoided. With upcoming projects (AOV/Cryptomatte) it becomes a bit of a mess as we are extending legacy code to support new features. This patch allows us to let each draw engine register their own render passes at render time (similar to cycles and other render engines). In the future we could get rid of legacy render passes registration in render_result_new. Reviewed By: Clément Foucault Differential Revision: https://developer.blender.org/D9088
.. 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 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.