Wayback Machinekoobas.hobune.stream
May JUN Jul
Previous capture 13 Next capture
2021 2022 2023
1 capture
13 Jun 22 - 13 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 Y-van · Sep 25, 2013 at 01:21 PM · physicsmeshgravitycollidersforce

Model tips over for no reason

Picture it:

  • Terrain is imported but is basically a flat plane with a mesh collider

  • A train locomotive chassis (rigid body: box with wheel colliders) sits on the terrain, collides correctly. It sits on the terrain due to gravity.

  • As soon as I put the "cab" and "engine" on the loco (imported mesh with meshg collider, part of the same rigid body), the whole thing pulls strongly in one direction until the loco tips over or has a seizure, rocking back and forth repeatedly.

  • The imported mesh is symmetrical and is about the same width and length as the chassis.

  • Still tips if I give rigid body a mass of 1 and wheel colliders a mass of 10, 100, etc.

  • Scale is 1uu = 1mm, so gravity is -9810 in y-axis.

  • The terrain is normal to y-axis.

Where is this other force coming from? What is going on?

Thank you.

Comment
Add comment · Show 1
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 Y-van · Oct 01, 2013 at 03:05 PM 0
Share

I don't think I can because: - I need wheel colliders for rotation. - If I use one collider it would need to be a mesh collider, and mesh colliders can't be used with other mesh colliders.

I guess I could use a box collider for the cab/engine but I have a feeling I tried that as well as no collider, though I don't remember off hand.

1 Reply

· Add your reply
  • Sort: 
avatar image
0

Answer by Jojo B · Oct 01, 2013 at 03:51 PM

dose the tipping only happen when your driving if it dose make sure both wheel considers are spinning at the same time i made that mistake once and it had me stumped for an entire day

Comment
Add comment · 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

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

16 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

Related Questions

How to make a object jump constantly at y and move to the next position to z (perfectly) 0 Answers

Simulate gravity on rigidbody 1 Answer

Stop child colliders from applying force individually 0 Answers

Gravity is preventing object from moving straight toward its direction when calling rigidbody.AddForce... 1 Answer

Zero Gravity like Physics? 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