Repositioning UV map while keeping texture [SOLVED]


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naunakht
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Posts: 124

Repositioning UV map while keeping texture [SOLVED] Nov 30, 2022 4:13:56 GMT -5

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Post by naunakht on Nov 30, 2022 4:13:56 GMT -5

My last project was too ambitious, so I'm trying to build my blender skills by doing something simple: paring down a pre-existing EA mesh. The new version of the outfit shows significantly more skin; consequently I need to reposition the top part of the clothing so that it no longer intersects with the skin's uv map.

I want to cut off a portion of the top and move it down so that it's out of the way:

Previous attempts to do this have yielded something like this:

My question is, how do I tell blender that I want the mesh's attached texture to "follow" the uv map to its new location? I feel like I'm missing something obvious here. Can someone help me with step-by-step instructions for how to reposition a piece of a uv map and then bake a new texture layout? Assume that I am very, very dumb, and require images of buttons to know what to click.

Last Edit: Dec 6, 2022 3:51:57 GMT -5 by naunakht

dissia Studio Member Posts: 248	Repositioning UV map while keeping texture [SOLVED] Nov 30, 2022 4:56:15 GMT -5 naunakht likes this Quote Select Post Deselect Post Link to Post Back to Top Post by dissia on Nov 30, 2022 4:56:15 GMT -5 Hello If I remember well this tutorial is about your problem Tutorial: Re-arranging the UV map and keeping the texture

naunakht
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Posts: 124

Repositioning UV map while keeping texture [SOLVED] Nov 30, 2022 14:15:30 GMT -5

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Post by naunakht on Nov 30, 2022 14:15:30 GMT -5

OK, so I got the texture to bake in the correct orientation...so why does the 3D model still show the old layout?

Also, when I try to save the new baked image, it ends up tiny compared to the original (512 x 1024 instead of 1024x2048). How can I make sure it's the correct size, and preserves the sharp details of the original?

Last Edit: Nov 30, 2022 14:52:18 GMT -5 by naunakht

mauvemorn
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Repositioning UV map while keeping texture [SOLVED] Dec 1, 2022 12:34:57 GMT -5 naunakht likes this

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Post by mauvemorn on Dec 1, 2022 12:34:57 GMT -5

Hi.

To create a new texture, click on New in UV editor. There you need to specify the desired dimensions. You should also click on Color and change A to 0.

If you want the material to project the rebaked texture, you need to choose it in the drop down menu in Materials

Last Edit: Dec 1, 2022 12:36:05 GMT -5 by mauvemorn

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naunakht
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Repositioning UV map while keeping texture [SOLVED] Dec 1, 2022 18:48:47 GMT -5

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Post by naunakht on Dec 1, 2022 18:48:47 GMT -5

How do I replicate this for the different LODs? I'm not keen on using decimation when I have all of the maxis LODs right in front of me (since this is a mesh edit). The problem is, I can't duplicate the exact repositioning, so the texture ends up slightly askew on the lower polycount LODs. How can I make the lower LOD uv maps line up with the first one that I repositioned? Are there ruler guidelines in blender like there are in photoshop? Is there a way to show two un-merged layers at once, superimposed? Or is there a way to export a .png where the outlines of the uv map remain visible, so that I can copy the alignment on subsequent edits? Blender is so un-intuitive when you've spent a decade using 2D drawing programs...

Last Edit: Dec 1, 2022 20:49:23 GMT -5 by naunakht

mauvemorn
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Repositioning UV map while keeping texture [SOLVED] Dec 2, 2022 11:30:16 GMT -5

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Post by mauvemorn on Dec 2, 2022 11:30:16 GMT -5

There are 3 ways:

1). You can open a blend with the lod1, select the mesh, select all uvs with A, set the rebaked image as the background, move and align the uvs with it;

2).
- Open lod1, append the mesh from lod0;
- select the mesh from lod0, select all uvs, remove the image from the background;
- shift select lod1 mesh, select all uvs, remove the image from the background, in uv editor View - Draw other objects. Now you will be able to see the uvs of lod0 mesh and can align yours;

3). This method is the easiest for the whole process but requires an addon:

Nov 23, 2021 6:12:17 GMT -5 mauvemorn said:

- open the package, press Shift Ctrl C to open the console, copy-paste
studio.exportall . S4S will create a folder with the same name and export all textures in png and all blend files;
- open lod0 blend file, File - Save as, name it "progress" or something like that;
- rename each s4studio_mesh_ to its lod and the last digit of the cut number. So it should be lod0_0, lod0_1, lod0_2;
- File - Append - lod1 - object - shift-select all s4studio_mesh_ - Append from library;
- rename s4studio_mesh_ to lod1_0, lod1_1, lod1_2;
- do the same for lod2-3 until you have all meshgroups in one file. Delete rig.00x, so that only the original rig remains. Delete all bone_bone_shape.00x, save;
- click on Code and choose download zip, put the archived file on your desktop;
- back to your blend, File - User Preferences - Install from file, choose the archived file, tick the new addon to enable it;
- now Shift-select all meshgroups and click on Multiedit enter;
- switch to uv_0, move that area of uvs of all meshgroups at once.
- once you're done, click on Multiedit exit;
- the cut numbers are not preserved, so you should change them to the corresponding ones (in the names of the meshgroups);
- save the files, close;
- open lod0 file, delete all s4studio_mesh_, append all lod0_ meshgroups from the progress.blend. No need to rename anything, just save the blend;
- now you can join all meshgroups (if multiple) and rebake the textures. Save the rebaked images ( overwrite the existing maps in that folder) but do not save the blend!
- open lod1, delete meshgroups, append all lod1_ messages from progress.blend, save;
-repeat for all remaining lods;
- open the console again, studio.importall, save.

Last Edit: Dec 2, 2022 11:39:15 GMT -5 by mauvemorn

PLEASE FOLLOW THE RULES OF CREATOR HELP:

• describe your problem and provide a picture of it (if possible);

• provide download link(s) to .package and .blend files.

If you have a Gmail acc, you can host all of the above on Google Drive

naunakht Studio Member Posts: 124	Repositioning UV map while keeping texture [SOLVED] Dec 5, 2022 2:09:13 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by naunakht on Dec 5, 2022 2:09:13 GMT -5 I've got it all nicely done and working in game! Here it is. Thanks for all your help!


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Repositioning UV map while keeping texture [SOLVED]

Post by naunakht on Nov 30, 2022 4:13:56 GMT -5

Post by dissia on Nov 30, 2022 4:56:15 GMT -5

Post by naunakht on Nov 30, 2022 14:15:30 GMT -5

Post by mauvemorn on Dec 1, 2022 12:34:57 GMT -5

Post by naunakht on Dec 1, 2022 18:48:47 GMT -5

Post by mauvemorn on Dec 2, 2022 11:30:16 GMT -5

Post by naunakht on Dec 5, 2022 2:09:13 GMT -5

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