• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
avatar image
1
Question by Caxt · Sep 03, 2018 at 11:24 PM · importmayanormalsimport modelskinned mesh

Importing a Skinned Mesh Breaks the Normals

alt text I'm trying to import a skinned mesh from Maya 2018 to Unity 2018.2.6f1. I had previously been trying to import from Maya 2017 to a recent but earlier version of Unity and had the same issue, updating my software didn't change anything. When I import a standard mesh, everything is fine. However, as soon as I bind the mesh to a skeleton, the normals get messed up.

In the picture, the mesh on the left is the unbound mesh with correct lighting. The mesh on the right is after I've bound it to a skeleton. I've been searching the forums for answers, but nothing has helped. Changing the import settings in Unity on the skinned mesh from import normals to calculate normals doesn't change anything. Deleting the non-deformer history, unchecking "animations", using Set-to-Face/Soften Edges/(Un)Lock Normals in Maya also doesn't help.

I haven't seen anything like this before, nor has anyone else I've asked. Any ideas?

broken-normals.png (66.1 kB)
Comment
Add comment · Show 2
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image NoDumbQuestion · Sep 04, 2018 at 07:46 AM 0
Share

$$anonymous$$aya have a direct Export to unity inside Settings. Did you use that or you export to FBX then import inside unity?

avatar image Caxt NoDumbQuestion · Sep 04, 2018 at 04:28 PM 0
Share

alt text

I've mostly been testing by exporting to FBX and then importing separately. If I use the "Send to Unity" button and export directly to my project, this happens. I don't know how to describe this beyond zebra normal nonsense. Using "Game Exporter" is the same result.

broken-normals.png (41.4 kB)

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by Bunny83 · Sep 04, 2018 at 09:42 PM

How many bones do you have and to how many bones is a single vertex bound to at the same time? Unity only supports 4 bone weights per vertex. So every vertex can only be bound to 4 bones max. If the quality settings is actually set to a lower profile it might be only 2 or 1 bone.

Comment
Add comment · Show 1 · Share
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Caxt · Sep 04, 2018 at 10:56 PM 0
Share

alt text

It's a very simple skeleton with only three joints, intended only ever to deform along the skinny neck portion in the middle. I've tried cleaning up the skin weights as best I can, but that didn't change anything. I've tried changing the quality settings in Unity as well, but that didn't change anything either.

skeleton.png (32.4 kB)

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

If you’re new to Unity Answers, please check our User Guide to help you navigate through our website and refer to our FAQ for more information.

Before posting, make sure to check out our Knowledge Base for commonly asked Unity questions.

Check our Moderator Guidelines if you’re a new moderator and want to work together in an effort to improve Unity Answers and support our users.

Follow this Question

Answers Answers and Comments

100 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Scale resets when importing to Unity from Maya 0 Answers

weird see though object (from maya) 1 Answer

Model Triangle Artifacts 2 Answers

Why does setting maximum shader smoothness show these images? 0 Answers

Import Messes up Axis 1 Answer


Enterprise
Social Q&A

Social
Subscribe on YouTube social-youtube Follow on LinkedIn social-linkedin Follow on Twitter social-twitter Follow on Facebook social-facebook Follow on Instagram social-instagram

Footer

  • Purchase
    • Products
    • Subscription
    • Asset Store
    • Unity Gear
    • Resellers
  • Education
    • Students
    • Educators
    • Certification
    • Learn
    • Center of Excellence
  • Download
    • Unity
    • Beta Program
  • Unity Labs
    • Labs
    • Publications
  • Resources
    • Learn platform
    • Community
    • Documentation
    • Unity QA
    • FAQ
    • Services Status
    • Connect
  • About Unity
    • About Us
    • Blog
    • Events
    • Careers
    • Contact
    • Press
    • Partners
    • Affiliates
    • Security
Copyright © 2020 Unity Technologies
  • Legal
  • Privacy Policy
  • Cookies
  • Do Not Sell My Personal Information
  • Cookies Settings
"Unity", Unity logos, and other Unity trademarks are trademarks or registered trademarks of Unity Technologies or its affiliates in the U.S. and elsewhere (more info here). Other names or brands are trademarks of their respective owners.
  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges