Julian Eisel
3a1ae5a02a
When displaying the Hierarchies view of the Library Overrides display mode in a specific Heist production file, Blender would become unresponsive for about 30 seconds and every redraw in the Outliner would lag noticably. Issue is that the sum of hierarchy elements is multiple thousands, and that really brings the Outliner to its knees. I've looked into some improvents and committed a few minor ones already, but it seems it's really the big sum of elements causing the issue. There doesn't appear to be a single bottle-neck. To work around this, "lazy build" children, so that children of collapsed elements are not actually created. This brings the tree building down to some tens of miliseconds, and redrawing becomes rather lag-free again, even with big parts of the tree un-collapsed. Problem: Searching still needs to build the entire tree, so it's essentially unusable right now. Should we disallow searching altogether?