Select similar geometry is an add-on for selecting objects based on a vertex position similarity percentage shared between objects. You can run it from the "select" menu in the 3d viewport.
Version 1.3.0 introduces major performance improvements. The KD-Tree is now built once from the active object instead of per object, removing redundant computation. A new vertex count filtering step skips objects that are clearly not comparable. Together, these changes dramatically reduce processing time, especially in large scenes, while keeping accuracy intact.
This extension does not require special permissions.
Great work. Here is an idea to make the tool even more useful:
Case scenario: I'm currently texturing a tree imported from 3DS max, and I have to find a way to automatically select all of its leaves (thousands of similar mesh islands)
yes, that could be very useful indeed, so the leaves are similar in shape but not exactly the same? I'll give it a go
Cool