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I tried many different ways to create a border outline for my objects. The outline helper add on, to duplicate the meshes and convert the border edges to grease pencil and I tried Geometry Nodes. But I am not able to receive the needed result.

I created a model of a globe. Each country has its own mesh. enter image description here

In the solid viewport, it looks great with the borders. If I switch to the renderer viewport or export the model as an usdz, the borders disappear (of course). How can I add such borders for each country in an useful way? After finishing the project, I need to export it as an usdz file to add it to a Virtual Reality app. Unfortunately, I need to consider it when finding a solution for the borders.

Feel free to download the blend file to test some things: I removed some countries in this blend file, because of the allowed file size in Blend Exchange. I would really appreciate any help or ideas I get.

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If you add a cube to the scene, and add a Geometry Nodes setup to it:

Then you will get a curve defined by geometry, which should be exportable to any 3D format:

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  • $\begingroup$ Thanks for your answer. Could you please upload your blend file, I do not understand it completely at the moment. I would like to check it out. $\endgroup$
    – Pascal Meger
    Commented Jun 12 at 0:34
  • $\begingroup$ Okay, seems to work. I will check it in the application. $\endgroup$
    – Pascal Meger
    Commented Jun 12 at 1:25
  • $\begingroup$ @PascalMeger do you have problems reproducing this setup? Take a screenshot of yours $\endgroup$
    – Markus von Broady
    Commented Jun 12 at 7:47
  • $\begingroup$ No, it worked. Thanks :) $\endgroup$
    – Pascal Meger
    Commented Jun 12 at 16:11

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