I have two mesh islands in the same plane which overlap as shown in fig1. enter image description here Now when I go to selection and do "select boundary loop", it selects the full boundaries of both the islands as shown in fig2 enter image description here. But what I ideally want to select is just the outermost loop of both the meshes combined as shown enter image description here. For this I wanted to merge both the islands as one island. Is there a way I can do this?


enter image description here

Select one of your squares. Apply a BOOLEAN modifier with UNION. Make sure the subdivision number is the same, try aligning them vertex to vertex. Use snap if necessary. Set the boolean operator to UNION and select the second square. Voilá. Thank you for your consideration to vote me as the answer by clicking to the left :the icon with a check mark and upvote this answer.


  • $\begingroup$ I don't want to match them vertex to vertex. Then it won't serve my purpose. And using boolean is same as hitting ctrl+j in object mode in my case. $\endgroup$ – Sum-Al Mar 13 '19 at 2:18

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