Search Unity

  1. We are migrating the Unity Forums to Unity Discussions. On July 12, the Unity Forums will become read-only.

    Please, do not make any changes to your username or email addresses at id.unity.com during this transition time.

    It's still possible to reply to existing private message conversations during the migration, but any new replies you post will be missing after the main migration is complete. We'll do our best to migrate these messages in a follow-up step.

    On July 15, Unity Discussions will become read-only until July 18, when the new design and the migrated forum contents will go live.


    Read our full announcement for more information and let us know if you have any questions.

Bug Unity3D object falling from high are passing through ground

Discussion in 'Physics' started by Boolable, Mar 6, 2022.

  1. Boolable

    Boolable

    Joined:
    Jun 28, 2015
    Posts:
    20
    First, you can see the bug in action here:


    When rigidbody objects are falling from high position (300 in my test), the ground collision doesn't works, the objects falls through ground.

    As you can see in the video, when I change the height to 30, it works.

    The spheres have rigidbodies using gravity and a sphere collider. For info, the grounds have mesh collider for the two on the right, and a box collider for the one on the left.

    I've tried to add kinematics rigidbodies to the grounds but it doesn't changes anything.

    Using Unity 2020.3.28f1.

    You can find a minimal reproduction here: https://github.com/BenDevelopment/Unity-3D-gravity-collision-bug

    Any idea why the collision behave like this?
     
  2. MelvMay

    MelvMay

    Unity Technologies

    Joined:
    May 24, 2013
    Posts:
    11,761
  3. ninhnimense

    ninhnimense

    Joined:
    Mar 5, 2023
    Posts:
    3
  4. MelvMay

    MelvMay

    Unity Technologies

    Joined:
    May 24, 2013
    Posts:
    11,761
    Sorry, what doesn't it change? If you have a problem and this doesn't solve your issue then it's not the same problem. Please create your own thread and describe your problem rather than necroing a thread like this.

    Thanks.