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[Cloth] [AR] Unity 2019.2.4f1 broke Cloth

Discussion in 'Physics' started by unity_V16sPb0I8SVOuw, Sep 10, 2019.

  1. unity_V16sPb0I8SVOuw


    Apr 1, 2019
    Hi, on Unity 2019.1.5f1, I am having unresolved issues in AR with:
    I thought upgrading to the newest Unity (2019.2.4f1) could solve the problems, but it actually made them worse. Now whenever I have a single prefab with a Cloth component instantiated in the scene, the app performance drops to <1 FPS. Before I could have 1-4 Cloths in the scene without performance issues.

    Furthermore, in my case, when I'm making models of flags for AR, the cloth wraps around the flag pole and squirms continuously. To reiterate, I only updated Unity and made no changes since the previous working version. The contraints and Physics settings also remained the same.

    Lastly, I see the [attached image] in the Editor until I select the prefab.

    Is this an issue with Unity or am I doing something wrong?

    Attached Files:

    • bug1.png
      File size:
      263.2 KB
  2. id0


    Nov 23, 2012
    They don't give a S***. They switched to physx 4 in unity 2019, completely broken cloth, but do not repair at all. I'm on alpha 2020, and the cloth still does such miracles.
  3. MadeFromPolygons


    Oct 5, 2013
    I 100% totally understand your frustration, but what you said regarding unity team is wrong. They do care, its not as simple as if its broken "they dont give a ****".

    It will get repaired, in the meantime have you both provided a bug report? If not (and I really hope you guys have before complaining about the issue at least - people are not clairvoyant), please file a bug report as mentioned here:

    And then reply back here with the case ID - this will ensure you get as timely support as possible! Good luck to you both :)
    MartinTilo likes this.