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 Daniele92 · Oct 12, 2012 at 11:39 PM · 2dcollisioncolliderconcave

Concave collision issue with 2D game

Hi to all. I don't understand why if i use a concave collider with my 2D game the 2D objects cross the planes and crossing each others as if there were no collider. Instead, they don't do this with 3D objects such as Boxes... If i use a convex collider they works without problem with all others colliders... (See the image below) alt text

attachment.png (68.1 kB)
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 Graham-Dunnett ♦♦ · Oct 13, 2012 at 09:13 PM 0
Share

Only mesh colliders marked as convex can collide with each other.

3 Replies

· Add your reply
  • Sort: 
avatar image
0

Answer by NowhereStudios · Oct 13, 2012 at 10:18 PM

Concave Meshes simply can't only collide with other concave meshes, so if you need something like this, then:

  1. You must split them to convex collider parts

  2. Create an concave game object. dont create any colliders to it.

  3. Add convex part game objects in to your concave gameobject.

  4. Add mesh collider to your convex meshes and mark them as convex.

  5. Remove your convex gameobjects MeshRenderer and MeshFilter components.

Goodluck :)

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
avatar image
0

Answer by Daniele92 · Oct 15, 2012 at 08:44 PM

Thanks for response.. And isn't there an automatic solution to make concave vs concave collision? becaus i'd like to use ragespline 2d programmatically to make complex shapes..

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
avatar image
0

Answer by UGTools · Oct 18, 2012 at 01:23 PM

There's a solution to automate this available at the Asset Store and that may help you: link

Another workaround is using compound colliders, basically what NowhereStudios describes. You can get documentation about this here (search for "compound colliders").

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

12 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

Related Questions

OnTriggerEnter2D not triggering 2 Answers

Ignore child intercollision, not parent-parent 0 Answers

GameObject ignores collision while swinging from hinge joint 2D 4 Answers

Unity getting an object to pass through another object but still trigger collision 1 Answer

OnCollisionStay contactPoint2D problem 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