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This wrapper script can be used instead of executing "blender" to launch blender in it's own display server which is closed when Blender quits. The BLENDER_BIN environment variable is used to run Blender, forwarding arguments & passing the exit-code back to the script. This can be used to run automated graphical-tests while still being in background (from a user perspective). This has the advantage that windows don't popup in the foreground, or on servers/VM's that aren't running a graphical session. Running many Blender instances, each in their own display server is also supported, allowing for tests to make use of multiple jobs. Tested with graphical undo tests which have not yet been made part of CTests (needs further investigation). Currently this only supports WAYLAND however it can run on X11 since it launches it's own WAYLAND compositor instance for each Blender session. The wrapper has been written with the intention of adding support for other back-ends in the future (if practical). Use the WESTON compositor since it's widely available and has a headless server, any other WAYLAND-server could likely be used without much trouble.
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.
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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 for details.