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headus 3D scans

Is It Possible To Open Existing UV Maps...?

 
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DarkEdge



Posts: 7
Joined: 12 Mar 2011

PostPosted: Fri Aug 10, 2012 4:30 am    Post subject: Is It Possible To Open Existing UV Maps...? Reply with quote

I have an obj that has UV's already assigned to it and just want to relax those existing UV islands a bit...is there a way to do that?
Everytime I open the obj it start my uv process from scratch and I can't get into the existing uv islands that are currently assigned to that obj.
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DarkEdge



Posts: 7
Joined: 12 Mar 2011

PostPosted: Fri Aug 10, 2012 4:35 am    Post subject: Reply with quote

Ahhh, just as I posted this I figured it out...Edit UV.
But that is leading me to another question...

1. If I can select the UV islands through the materials can I isolate that island so that it is all alone?
2. Can I select and freeze the boundries of that island and just relax the insides?
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headus
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Posts: 2894
Joined: 24 Mar 2005
Location: Perth, Australia

PostPosted: Fri Aug 10, 2012 6:55 pm    Post subject: Reply with quote

" can I isolate that island so that it is all alone?"

I'm not 100% sure what you mean there, but when you select a material from the list, it green marks those polys, so you can do anything then that you can with any other green marked polys. If you want to detach them, use Enter over those marked polys. If you want to hide everything except those shells, use the hotkey sequence H-G to hide them first, the H-S to swap whats visible and whats hidden.

"2. Can I select and freeze the boundries of that island and just relax the insides?"

Yes, use Shift-P on one of the boundary points to pin the whole boundary, then you can use "F" to flatten that shell and the boundary will stay fixed. If the internal UVs dont flatten out nicely (because of the pinned boundary) try scaling the shell up and flatten again.

Phil
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TwoSheds



Posts: 104
Joined: 03 Sep 2009

PostPosted: Sun Aug 12, 2012 1:26 am    Post subject: Reply with quote

headus wrote:
" can I isolate that island so that it is all alone?"

I'm not 100% sure what you mean there, but when you select a material from the list, it green marks those polys, so you can do anything then that you can with any other green marked polys. If you want to detach them, use Enter over those marked polys. If you want to hide everything except those shells, use the hotkey sequence H-G to hide them first, the H-S to swap whats visible and whats hidden.

"2. Can I select and freeze the boundries of that island and just relax the insides?"

Yes, use Shift-P on one of the boundary points to pin the whole boundary, then you can use "F" to flatten that shell and the boundary will stay fixed. If the internal UVs dont flatten out nicely (because of the pinned boundary) try scaling the shell up and flatten again.

Phil


I didn't even know these things. Are these new features, meaning since version 2.06? I ask because I recently upgraded after using 2.06 for almost two years, and I'd hate to think I was this unobservant. Very Happy
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headus
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Joined: 24 Mar 2005
Location: Perth, Australia

PostPosted: Sun Aug 12, 2012 6:31 pm    Post subject: Reply with quote

The material group selecting was added in v2.06.02, but the boundary pinning has been there from almost the beginning.

If you ever want to know whats new for each version, scan the Updates forum for anything with "UVLayout vX.XX now available" in the title ...

http://www.headus.com/phpbb/viewforum.php?f=18

Phil
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DarkEdge



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Joined: 12 Mar 2011

PostPosted: Mon Aug 13, 2012 4:21 pm    Post subject: Reply with quote

Thanks Phil, you always answer and that is much appreciated. Very Happy
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