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Shaders are only compiled if they are used by some other Node (Geometry, Light, etc.). This usage detection is done before updating the Scene, however it fails at detecting Shaders used by Procedurals not known to Cycles (e.g. ones defined by third party applications), as Procedurals are only updated after the shaders are compiled. To remedy this, we now use the Node reference counting mechanism to detect whether a Shader is used and therefore should be compiled. This removes `ShaderManager::update_shaders_used` as it is not needed anymore, however, since it would also update the Shader ids, this is now performed in `ShaderManager::device_update`, and a new virtual `device_update_specific` method was added to handle device updates for SVM and OSL. Reviewed By: brecht Differential Revision: https://developer.blender.org/D10965
.. 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.