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Subject: Export obj as polygroups in 2.81


SilentWinter ( ) posted Fri, 22 November 2019 at 6:12 PM · edited Thu, 28 November 2024 at 1:04 PM

So I've just installed 2.81 and it's great ... except when I go to export an obj and get the new export window. On the surface it's an improved workflow, but there's an option missing: 'Polygroups' - this is what I'd check before so that it can import to Daz Studio's figure setup tool and create bones from the vertex groups.

Does anyone have any idea which options I'd need now to export as a single obj with vertex groups intact?

Cheers,

SW 😁



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Lobo3433 ( ) posted Fri, 22 November 2019 at 9:57 PM · edited Fri, 22 November 2019 at 10:11 PM
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Hi SilentWinter Just opened up 2.81 had downloaded and had not played with it yet but looks like one the polygroup option is missing from 2.81 and is still visible as an option in 2.8 so not sure if that is a bug that needs reporting or if a setting needs to be changed so at this moment do not have a clear answer to your question

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SilentWinter ( ) posted Fri, 22 November 2019 at 10:06 PM

Thanks, but that's just the vertex order, not vertex groups (vertex order was there before and is important when making morphs).

The thing I'm looking for was called 'polygroups' and allowed DS to import an obj with vertex groups assigned (such as head, neck, etc) and then use the figure setup tool. I could do it with geometry editor in DS but it's much faster and easier in Blender.



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Lobo3433 ( ) posted Fri, 22 November 2019 at 10:12 PM
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Sorry was trying to edit my previous post when I saw I made an oops and saved it with the wrong answer

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SilentWinter ( ) posted Fri, 22 November 2019 at 10:18 PM

No worries, cheers.

At least it's confirmed not just me :lol:

I'll look at the settings later when I get the chance and bug report it if it can't be found.

Thanks



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Lobo3433 ( ) posted Fri, 22 November 2019 at 10:20 PM
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I am looking thru setting and everything I can think of and that check box is missing but is visible in 2.8

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SilentWinter ( ) posted Fri, 22 November 2019 at 10:25 PM

Yeah, it's in 2.8 ok. 2.81 moved the export dialog to a new window and this is missing from it.



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Lobo3433 ( ) posted Fri, 22 November 2019 at 10:29 PM
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I will keep looking into it since I am sure this will come up more figuring it is a bug

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SilentWinter ( ) posted Sat, 23 November 2019 at 5:25 AM

Cheers.

Interestingly, when importing an obj, clicking "keep vertex order" allows you to select 'polygroups' - just not at export. Sounds like an oversight in that case. Luckily I've still got 2.8 as an install - but 2.81 does seem like an improvement in most ways.



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Lobo3433 ( ) posted Sat, 23 November 2019 at 10:30 AM
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I noticed that also on import it is there but not on export I am still getting use to 2.8 got 2.81 just to have and begin looking into some of the improvements but beyond opening it have not done much with it yet just noticed your FB in your signature sent you a friend request 👍

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DaremoK3 ( ) posted Sun, 24 November 2019 at 2:23 PM

SilentWinter/Lobo :

Yeah, it looks like it is an oversight/possible bug -- It is still listed as a flag in B2.81 Python API, so the boolean toggle can still be used, but is not exposed.

OBJ Polygroups flag : use_vertex_groups (boolean, (optional)) – Polygroups

So, for my custom export scripts where I have the flag enabled, it should work (all automated - not user selected). I just downloaded 2.81, and will look at the OBJ export code for confirmation - will report back later...

I need it for my work with Daz Studio as well, so you had me worried for a moment -- You just need it exposed on your end for usage.

As a work-around for now if you want to work in 2.81, complete your work in 2.81, open up 2.80, select and copy your figure in 2.81, paste your figure into 2.80, and then export as usual. It's faster than the writing seems - I do this with 2.80 and 2.79 where my custom scripts reside until I get around to upgrading the code to 2.8x structuring. I usually have them both open at same time.


DaremoK3 ( ) posted Sun, 24 November 2019 at 4:18 PM

Okay, I'm back after testing, and fixing the export script for my use.

Sharing is caring - so, if you don't want to wait for a release fix, here is the fixed OBJ export panel : Fixed OBJ Export to include Polygroups

  • Instructions included for manual install (not set up for ZIP install within addons preferences panel - though may work, but simple manual install - look at instructions text file)

I tested with a V4 figure, but only reading exported OBJ code (no Daz Studio import) - Polygroups included correctly in OBJ file...


Lobo3433 ( ) posted Sun, 24 November 2019 at 4:57 PM
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Thank you Daremok3 appreciate the tip and script 👏

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SilentWinter ( ) posted Wed, 27 November 2019 at 12:30 AM

DaremoK3 posted at 2:29PM Wed, 27 November 2019 - #4371177

Okay, I'm back after testing, and fixing the export script for my use.

Sharing is caring - so, if you don't want to wait for a release fix, here is the fixed OBJ export panel : Fixed OBJ Export to include Polygroups

  • Instructions included for manual install (not set up for ZIP install within addons preferences panel - though may work, but simple manual install - look at instructions text file)

I tested with a V4 figure, but only reading exported OBJ code (no Daz Studio import) - Polygroups included correctly in OBJ file...

Awesome - thanks 👍



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SilentWinter ( ) posted Wed, 27 November 2019 at 12:30 AM

Lobo3433 posted at 2:30PM Wed, 27 November 2019 - #4371070

just noticed your FB in your signature sent you a friend request 👍

I didn't get a request -- not sure if pages like that have 'friends' - can you double check?



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Lobo3433 ( ) posted Wed, 27 November 2019 at 2:54 PM
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It shows I am following the page

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SilentWinter ( ) posted Wed, 27 November 2019 at 4:04 PM

Ah, 'follow' is different from 'friend request'. Are you down as Lobo? I'll check it later (no time now). Cheers 😁



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Lobo3433 ( ) posted Thu, 28 November 2019 at 11:40 AM
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I did not realize it was a page so no friend request option but my forum signature has my FB link to my actual profile anyone from this forum is free to sent me a friend request Happy Thanksgiving everyone

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