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Lei5E5D
New Participant
March 26, 2023
Answered

Substance 3D Painter won't show my imported obj

  • March 26, 2023
  • 2 replies
  • 17465 views

Hi All

 

I tried importing an obj and for some reason the object will not appear in 3D Substance Painter. I exported the obj from CLO3D. I have tried importing the obj into Substance Painter by dragging the file into the 3d window and also by using the File import method. Neither method works and I've tried several times.

 

I have gotten several error messages in the logs: 

What does "[Scene 3D] OBJ: No object detected to attach a new mesh instance." mean?

And what does "[Resources List Model: Icons memory budget set to 100MB" mean? When I look into my settings it says +500MB.

 

I appreciate any help anyone can provide. 

Correct answer Cyril Dellenbach

Hmmm, Substance 3D Painter may have some issue with .obj depending on which software exported it. Could you try to export your object as a .fbx and tell me if the problem persists.

 

Keep me posted.

 

2 replies

T
tilda23075022gpkz
New Participant
October 18, 2023

Cyril,

 

If when I export to OBJ it keeps adding neagtive space, I only use 1001-1003 but it adds more balck boxes, how can I solve that?

Cyril Dellenbach
Community Manager
Cyril DellenbachCommunity Manager
Community Manager
March 27, 2023

Hello @Lei5E5D,

 

Thanks for the message.

 

The lines we should worry bout are those in red. In your first sent log, I can see there are multiple issues with your UVs.

 

Face(s) spanning across multiple UDIM means there is one or several UV islands localised on multiple UV tile (1001, 1002, etc.). Make sure that no UV islands is spanning between two (or more) tiles. 

 

Also, Substance 3D Painter doesn't support UDIM on negative spaces (below or to the left of the tile 1001).

 

If the errors persist, I'd advise you to load the object inside another software to make sure there is no issue at the export.

 

Best regards,

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe
L
Lei5E5DAuthor
New Participant
March 27, 2023

Hi Cyril, 

 

First of all, thank you for getting back to me. You were right! I checked my UV editor and I saw one tiny little piece that crossed over into the negative space. That helped to fix my UDIM.

 

However, even after fixing that issue, I still have a notification at the bottom right that says the same in red font " [Scene 3D] OBJ: No object detected to attached a new mesh instance" . But somehow Substance 3D Painter still looks like it does bake when I bake the meshes and still lets me add textures. And in the log it seems to be still autosaving. Is there still something wrong with my OBJ? Please note, I was able to load the .obj file into Blender and export it. 

 

Thank you again for all your help,

 

Warm regards

 

Cyril Dellenbach
Community Manager
Cyril DellenbachCommunity ManagerCorrect answer
Community Manager
March 28, 2023

Hmmm, Substance 3D Painter may have some issue with .obj depending on which software exported it. Could you try to export your object as a .fbx and tell me if the problem persists.

 

Keep me posted.

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe
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