Remove duplicate vertices
Duplicate vertices have the same vertex in the same position, causing them to overlap. They can be caused when converting CAD files to mesh, or from mistakes during the design process.
Having the same vertex in the same position is unnecessary and causes increases in file size, rendering issues, broken UV maps, and LOD errors. Removing duplicate vertices helps bring down your vertex count and in turn decreases file size.
To remove duplicate vertices
1. Select the node in the outliner where you want to remove duplicate vertices
2. Use the “remove duplicate vertices tool” (first tool in the top toolbar) to find and merge overlapping vertices.
3. Click OK