Skip to main content
S
SMN-P
Participant
April 3, 2023
Question

Map baking incorrectly

  • April 3, 2023
  • 1 reply
  • 1577 views

Hi!

 

Im working on a school project. I made a high-poly (decimated) mesh with polypaint in Zbrush. I then made a low poly retopo as well as a UV unwrap in Maya. I ended up with 3 UV sets.

 

Now I need to bake my maps inside of Substance Painter. When I import my Low poly as FBX it doesn't show my UVs at all. Importing as OBJ does show the UVs, but when i bake my highpoly polypaint onto it it doesn't seem to work. (see picture) 

 

Im still very new in substance painter and have never worked with multiple UV sets inside of it, so that might be where i go wrong. 

This topic has been closed for replies.

1 reply

Cyril Dellenbach
Community Manager
Cyril DellenbachCommunity Manager
Community Manager
April 3, 2023

Hello @SMN-P,

 

Thanks for the question.

 

The fact that the .fbx doesn't have UVs inside Substance 3D Painter is probably an issue at the .fbx export. Make sure that your export parameters are set as needed and if the problem persists I'd advise you to check the .fbx in another software to see if the issue is specific to Substance Painter.

 

For the polypainting, does the high poly mesh is in the same format (.obj, .fbx, etc.) as the low poly mesh? A difference of format could result with a different scaling, causing issue at the baking. With that being said, do the other maps are baked correctly (normal map, ambient occlusion, etc.)?

 

Keep me posted and have a nice day.

 

Cyril Dellenbach (Micro) | QA Support Artist | Adobe
S
SMN-PAuthor
Participant
April 3, 2023

I was indeed able to fix some things in maya to get the FBX to work.

 

I now used both the lowpoly.fbx and the highpoly.fbx, yet the baking does not change. 

The only map that seems to bake correctly is the Position map. Others have similar result to picture posted earlier.

 

When i do not use the highpoly in my baking, all the maps (besides color) do seem to bake properly. (see below)

These are the settings i use to include my high poly:

The loaded high definition fbx file comes directly from Zbrush. It's decimated and has poly paint.

Cyril Dellenbach
Community Manager
Cyril DellenbachCommunity Manager
Community Manager
April 3, 2023

Hmmm, Have you tried to import both your LP and HP inside Maya before exporting? I'd advise you to make sure there is no scaling issue. Zbrush has a specific manner of handling scales.

Cyril Dellenbach (Micro) | QA Support Artist | Adobe
Terms & ConditionsAccessibility statement
Using the community Terms of use Privacy Cookie preferences Do not sell or share my personal information ad choicesAdChoices