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Why do Daz clothes "break up" when imported into CC?

Posted By Kelleytoons 2 Years Ago
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Kelleytoons
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So I've experimented quite a bit with taking Daz clothes from Daz, though Blender, and then into CC, with mixed results.  Some of the time it works very well, but most of the time there are definite issues with what I can best as "breaking up" where the pieces of the mesh actually crumple against each other when deformed.

Ignoring the fact these are two different characters (so somewhat different body types) here's the exact same clothing piece on a Daz character imported into iClone:

https://forum.reallusion.com/uploads/images/39c54e4b-0e8c-4808-9ca7-c0cc.png


And then the same clothing, imported through CC, onto a CC character:

https://forum.reallusion.com/uploads/images/8e7d6eee-2e1e-412a-9803-f587.png

Does anyone have a clue as to what could be going on?  I thought at first it was due to the construction of the clothing itself, but if that's true then why does the Daz character (in iClone, mind you, with the exact same pose applied) work fine?  If it's not the clothing, it must be how I'm bringing it in, so I suspect a weighting issue, but I'm following the only procedure I know how (using the By Name in Blender to transfer the weights).  If there's some other way I should be doing this I'd love to know.



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vidi
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seems only press automatic skinning button in blender is not enough.how good looks a meshdeformation depends from weighting  .weightpainting  is the key 
Also i would create shirt and vest separately and hide unnecessary polygons 


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Kelleytoons
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You were right, Vidi -- but I was able to write a python routine which does automatically blur the auto weights and thus results in very good skinning (and the vest and shirt are part of a single mesh, so no chance to separate).

https://forum.reallusion.com/uploads/images/5ca14985-2f8c-48c3-acf8-59f2.png




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Kelleytoons (3/9/2018)
You were right, Vidi -- but I was able to write a python routine which does automatically blur the auto weight

Any chance you would like to share that python script? Is it something that could be used by others? Sounds like a useful script.
the vest and shirt are part of a single mesh, so no chance to separate

I am not sure if this is the case in your particular instance but I have found that some 3rd party content is made from multiple mesh pieces that then then joined into one single mesh. While such a mesh appears as one mesh in software (like Blender) the different parts of the mesh are not actually stitched together and can cause odd effects especially when resizing or auto fitting. For example, when conform is used on such meshes the seams where the pieces of meshes are not stitched together can reduce/increase individually causing gaps to appear.
I will confess that in some quick content I am guilty of such atrocity myself...for example, my freebie Mrs Clause outfit (provided as a x-mas freebie) added a faux-fur trim to the end of a skirt. Since I already had a skirt, I just added a second mesh containing the trim and joined the meshes together. To save time, I didn't actually merge the two meshes to use common vertex points and thus while the meshes appeared as one mesh, they were still made up of two parts (the skirt and the trim). This is why, if someone turned on physics for the skirt, the trim fell right off (because there was nothing joining the two mesh pieces even though they were one mesh). I've even written myself a little app that stitches mesh parts together for cases where working on separate mesh pieces is desirable but I then want the whole thing to not fall apart.  


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I'm totally new to this, but has there been a solution the the clothing breaking up when importing from Daz to CC3? 



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