this is a minimal check, that checks that the 2 first faces of the range do not share the same index This test is not complete and the complete check should test that no 2 vertices share the same index, but that's too costly to be worth it here
this is a minimal check, that checks that the 2 first faces of the range do not share the same index This test is not complete and the complete check should test that no 2 vertices share the same index, but that's too costly to be worth it here