Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 12 Next capture
2021 2022 2023
1 capture
12 Jun 22 - 12 Jun 22
sparklines
Close Help
  • 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
0
Question by CvW · Jun 14, 2011 at 12:25 PM · proceduralboneskinning

Grouping vertexes using bones

I have a mesh that I want to change using a script during runtime. But I only want to change certain vertexes in the mesh. In Blender these vertexes form a vertex group but you don't see this in Unity. Therefor I added a bone for each group and connected these with the vertex group giving them weight 1.

My idea was to find the correct groups in Unity by looping through Mesh.boneWeights and seeing if the weight to a certain bone was equal to 1. But how do I find out which bone index corresponds to which bone?

Comment
Add comment
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

1 Reply

· Add your reply
  • Sort: 
avatar image
0
Best Answer

Answer by Bunny83 · Jun 14, 2011 at 12:48 PM

You shouldn't look for a certain weight. Just search the bone Transform by name. If you found your bone GameObject you can search for it in the bones array. When you've found your bone you have the index. Now you can check the boneWeights array and find all vertices that have your bone index and a weight > 0.

Comment
Add comment · Show 2 · 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 CvW · Jun 14, 2011 at 01:35 PM 0
Share

So I can only do this if I have a Skinned$$anonymous$$eshRenderer component? Because basically I'm not rendering the mesh, only adapting it to use as colliders.

avatar image Bunny83 · Jun 15, 2011 at 12:34 AM 0
Share

It seems so... The bone references are stored in the Skinned$$anonymous$$eshRenderer. Without that information it's nearly impossible to figure out what bone has what index.

A Skinned$$anonymous$$eshRenderer can't be attached like a "normal" component from the menu because you would need to setup the bones yourself. It is created during import so the bones get correctly linked.

I can't see any "logic" behind the bones order (seems random to me: index 0 is the right leg, index 1 is BIP001). It has no relation to the bone-names or the order in 3dsmax...

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.

Follow this Question

Answers Answers and Comments

2 People are following this question.

avatar image avatar image

Related Questions

Procedural Skinned mesh? 1 Answer

Bones move mesh in editor but not in run?? 1 Answer

Skinning character (attaching mesh to skeleton) 2 Answers

Skinning a mesh by Code... 1 Answer

How to detect end of slerp when moving bone 0 Answers


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