Unity suspected floating point error black dots

Question

I am creating this puzzle thing, which generates puzzle pieces at runtime (i generate verts, make them into meshes, and texture them all at runtime)

Since i now got a complete puzzle, and after confirming that verts are EXACTLY lined up, i get these tiny tiny black dots when i view my puzzle. They are however nowhere to be seen when you zoom in on them.

I suspect this is just a floating point error. If that is the case, I have no idea how to fix it. Any input on this subject is greatly appreciated.

Thanks in advance, Smiley

Answer 1

Stitch the vertices together and use UV mapping to compose your puzzle mesh. That way you will not have this visual artifact.

It's a rendering artifact not a floating point error. You often see this sort of thing when say two wall pieces that are, seemingly, perfectly aligned still show a tiny (pixel wide) gap.

Another way to solve this would be to overlap the puzzle pieces a little bit. Of course you must also take z order into account.

Hope this helps.