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Hans Goudey dbbf0e7f66 Nodes: Improve node tree copy performance
When copying a full node tree, we can avoid an O(n^2) loop finding a
unique name for every node if we assume they already have unique names.
That is a reasonable assumption, since unique names are verified
elsewhere when adding a new node.

Copying a node tree with about 4000 nodes took 42 ms before,
now it takes 6 ms.

Differential Revision: https://developer.blender.org/D13644
2021-12-22 08:52:46 -06:00
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2021-12-08 13:31:19 +11:00
2021-12-16 11:41:46 +11:00
2021-12-16 11:41:46 +11:00