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Is it possible to transfer mesh data such as UV map projection and vertex weights to another mesh that has different topology?

I thought the Data Transfer Modifier could do this, but I haven't figured out how to make it work. Or maybe I am mistaken?

I made a test .blend of a very simple scene containing three spheres, each with different topology. The Roundcube is textured and weighted, but the other two are not. How can I make the other two spheres use the texture space and approximated weights of the Roundcube?

Three spheres created for testing the Data Transfer Modifier

Thanks in advance.

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    $\begingroup$ I think you should use the data transfer operator instead (easier to repeat for try/retry and... I never succeeded to use the modifier...). To use it: place object so that they overlap, select the destination(s), then select active the source. Use ctrl+shift+T. But, considering the topology here: UV map won't give a good result; Vertex weights may be good $\endgroup$
    – lemon
    Commented Mar 6, 2017 at 7:44
  • $\begingroup$ @lemon Hey, thanks! I tried transferring the UV data and it generated a new UV map on the Icosphere that was very similar to the original in its result! It had imperfections at the seams, but definitely usable. Could probably clone-paint those areas and save a new texture image that would work on it. As for transferring vertex groups/weights it only transferred one group - do you know how to get it to transfer all of them? $\endgroup$
    – Mentalist
    Commented Mar 6, 2017 at 9:59
  • $\begingroup$ For the vertex groups, choose "all layers" as source layer instead of "active layer" $\endgroup$
    – lemon
    Commented Mar 6, 2017 at 10:02
  • $\begingroup$ @lemon I see all the options now. My Operator Panel was hidden before. Thanks! This worked really well in my test. This is really useful info. It's still bugging me that I don't know why the Data Transfer Modifier doesn't work, but this method is just as good of a solution in most cases, I think. $\endgroup$
    – Mentalist
    Commented Mar 6, 2017 at 10:17
  • $\begingroup$ About the modifier I really don't know... but considering the modifier needs to be applied... the operator does the job too and it is much more simple to use in my opinion $\endgroup$
    – lemon
    Commented Mar 6, 2017 at 10:23

1 Answer 1

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I was able to get a uv transfer using the the Data Transfer Modifier.

Select object to transfer the UVs to, add the Data Transfer Modifier

In the source parameter select the model to get the uvs from, check on Face Corner Data.

In Face Corner Data check on UVs. In the mapping parameter select Nearest Face Interpolated.

Also, clicking off the Object Transform button next to the Source parameter is great if your source object has been moved away from your destination object.

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