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headus 3D scans

Unwrapping LODs

 
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NickEast



Posts: 2
Joined: 05 May 2019

PostPosted: Sun May 05, 2019 3:58 pm    Post subject: Unwrapping LODs Reply with quote

UVLayout has made UV unwrapping so much easier and therefore more enjoyable. I've managed to unwrap quite a number of models without breaking a sweat.

But now I've run into a corner. Unwrapping individual models is fine, but now I need to unwrap two LODs based on the base model. I can't use automated LOD tools or collapse edges, due to how I needed to make the LOD models.

I've found that I can import multiple models in the same session, and group them. So I tried to unwrap the LODs with the same seams, then snap border vertices to the matching UVs of the base model, pin them, and reflatten the islands. Rinse and repeat until the LOD UVs match up with the base model. Is there maybe an easier or more practical method to do this? When I overlap islands, they obviously block the view of the islands below them, so I can't truly see if they match.
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headus
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Posts: 2873
Joined: 24 Mar 2005
Location: Perth, Australia

PostPosted: Wed May 08, 2019 5:42 pm    Post subject: Reply with quote

We have developed a UV transfer tool for LODs for our own projects, but its not ready for release (too buggy still :). No-one has requested it until now though, so that's why we never finished it off properly. I've now added it officially to the wish list!

In the meantime, regarding matching up overlapping shells, have a look at the "X-Ray" slider in the Display panel.

Phil
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NickEast



Posts: 2
Joined: 05 May 2019

PostPosted: Thu May 09, 2019 12:55 am    Post subject: Reply with quote

Oh wow, that I missed the X-ray slider. Thanks, that'll make everything so much easier.

And a UV transfer tool would be a very welcome addition. But UVLayout as it currently stands is already a massive time saver so I'm already grateful that it exists. I can be patient Very Happy
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