BROKEN Use sparse set for UI node extraction #3
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This breaks UI borders, so don't merge yet
This is a less complex change that happens to be much faster than the
Drain
iterator.However, this is incompatible with the pattern of pushing one
ExtractedUiNode
per border, so it can only be merged once bevyengine#8973 itself is merged firstSo without borders in the
many_buttons
stress test:prepare_uinode
is twice as fast as your current change (I suppose this makes it a ×8 speedup from bevy/main)Extract
schedule is 30% faster (due toextract_uinodes*
systems being faster)