My model has a mesh with faces that are occluded by other sibling meshes:

enter image description here enter image description here

Right now I've been manually removing the occluded faces to reduce vert count and prevent skinning artifacts during animations.

Is there some sort of tool or plugin that can help me remove occluded faces more easier? I'm open to purchasing paid plugins, if necessary. I have to do this work for ~30 models.

Or if I instead had all of the meshes merged into a single mesh, would that enable me to use any other tools to remove occluded faces?



Maybe give the Mask Modifier a try.

  1. Add a vertex group to the body named "mask",
  2. Assign the verts you want to be hidden to this group
  3. Apply a Mask Modifier, & select the vertex group in the modifier settings.

( If the modifier hides the opposite of what you want to see, be sure to click the double arrow icon next to the vertex group field in the modifier )

enter image description here

Here is a video example : https://youtu.be/AYVNNT_IeSA?t=1246

Dunno your situation, but this is probably the least time consuming and least destructive option.

Hope this helps, and good luck!

  • $\begingroup$ Thanks for the tip on masking, but I think the trouble is somehow determining/selecting all the vertices that are occluded. $\endgroup$ – MisterTest May 5 at 0:15
  • $\begingroup$ You're welcome. Dunno your situation...but it seems like a scripted solution is the answer. For example, if your source app was Makehuman, the vertex groups needed for masking might already be premade. Then, if your desintation app was Unity3D for example, you might be able to get a script made to automate importing. Between Blender's Python, and your destination app's available scripting languages, ideally, I think, that would be the way to go. $\endgroup$ – Emboo2 May 5 at 2:34

With the inner mesh selected and in Edit Mode, you can hold Control down while using left mouse button to draw around the area of the outer mesh, maybe not too close to the edges. Then you can delete what you've selected. But maybe this is what you mean by "deleting manually", and you want something more sophisticated?

  • $\begingroup$ Yes, I've been removing faces manually like this, so indeed I am looking for something more sophisticated. Thanks! $\endgroup$ – MisterTest May 3 at 10:22

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