BufferGeometryUtils.mergeVertices: Shift the hash bin to avoid missing neighbors #26746
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Fixed #24621
Description
Adjusts the hashing approach for mergeVertice to shift the hash bin boundary away from round numbers where vertices will more commonly be. This is not a perfect fix - I think that would require a significantly slower solution - but should improve the ability to merge in more common cases.
Here's version of the codesandbox from #24621 using the new function showing that it fixes the missed vertex in this case.
https://jsfiddle.net/zejt0Lrb/
Before / After
cc @erasta @donmccurdy