Bastien Montagne
3027ff8b13
This time, it's a dedicated operator user has to run before saving the file. And it recursively check all IDs linked from each scene, therefore rendering materials etc. previews using a scene they are used in. Note the renderengine issue is not completely addressed this way (existing code for icon previews seems to ignore completely other engines, and IDs not linked anywhere (fake-user ones) will be rendered with current scene's engine as fallback, also you can get a material linked to an hidden object in a scene, etc.). Reviewers: sergey, campbellbarton Reviewed By: campbellbarton Differential Revision: https://developer.blender.org/D980