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 Ben · Jul 10, 2010 at 01:01 AM · exceptionignorecollision

IgnoreCollisions Exception

I am using this code to force objects to ignore collisions on an array of other objects:

ballList = GameObject.FindGameObjectsWithTag("ball"); 
for (ball in ballList)
{ 
    Physics.IgnoreCollision(ball.collider, collider); 
} 

When I run the game I get this exception:

Scene::setShapePairFlags: The two shape references must not reference the same shape. UnityEngine.Physics:IgnoreCollision(Collider, Collider, Boolean) UnityEngine.Physics:IgnoreCollision(Collider, Collider, Boolean) UnityEngine.Physics:IgnoreCollision(Collider, Collider)

What does this mean and how can it be fixed?

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

2 Replies

· Add your reply
  • Sort: 
avatar image
2
Best Answer

Answer by Eric5h5 · Jul 10, 2010 at 01:38 AM

Change

Physics.IgnoreCollision(ball.collider, collider);

to

if (ball.collider != collider) {
    Physics.IgnoreCollision(ball.collider, collider);
}
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 qJake · Jul 10, 2010 at 02:40 AM 0
Share

It amazes me that you can understand what's going on with his script even though he posted so little information. Probably one reason you're the one with 13k rep points around here. :P

avatar image Eric5h5 · Jul 10, 2010 at 03:11 AM 0
Share

@SpikeX: Experience -- been there, done that. ;)

avatar image
0

Answer by qJake · Jul 10, 2010 at 01:32 AM

Your ball is the same game object that the script is on, so ball.collider and collider are exactly the same component. I don't know how to fix it, but you can't give IgnoreCollisions() the same reference twice.

Or you could have just read the error message, which explains exactly what I just said:

The two shape references must not reference the same shape.

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

No one has followed this question yet.

Related Questions

Can't get Physics2D.IgnoreCollision to work on multiple objects 0 Answers

Using List.Count on Unity iPhone 2 Answers

What could be causing this problem reading from a Rect into a Vector2? 3 Answers

NullReferenceException, but the reference is set! 2 Answers

FileStream requires network to open local file? 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