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I have a complicated geometry with some really small (not very visible) self-intersecting faces to fix, like below:

enter image description here

I have tried to use the shrinkwrap modifier and wrapped a fine-meshed cube on its surface. However, even though the cube is very finely meshed, the approximation is still not good:

enter image description here

I can use remesh modifier to fix the self-intersecting faces, but it requires an astronomical amount of vertices (deep octree) to maintain the geometry.

Could anyone please help with some ideas? Thank you!

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  • $\begingroup$ There is no way to automatically fix overlapping faces, I guess, and even a function hiding all but intersecting faces won't help, since most times you need to see the rest of the mesh to fix those errors, but since you have just a few of intersecting faces, to better find/fix them manually, you could hide large parts of geometry (Hkey), allowing better visualization to smaller corners. Then fix, unhide (ALT+Hkey) and repeat. $\endgroup$ – m.ardito Sep 20 '16 at 7:35
  • $\begingroup$ You can use the remesh modifier. $\endgroup$ – myselfhimself Jan 21 '17 at 21:32
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What was the step that introduced this geometry problems? In general it's better to avoid geometry problems at all than to try to fix it. So i would suggest to have an eye at your workflow.

At this point i would retopology such a problematic mesh by hand now. No algorithm can know which vertices to keep and which not. So there is imho at this stage no way around manual work.

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Have you tried this:

  1. Switch to edit mode
  2. Select all vertices
  3. Select Remove Doubles
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