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Are there some bugs in Particle System Render Mode "Stretched Billboard"?

Discussion in 'General Graphics' started by atk_defender, Dec 29, 2019.

  1. atk_defender

    atk_defender

    Joined:
    Jun 26, 2018
    Posts:
    25
    Render Mode "Stretched Billboard"
    When Transform.scale.x = -1, the particle flips.
    捕获.PNG
    捕获 2.PNG

    Render Mode "Billboard"
    When Transform.scale.x = -1. it looks fine.
    捕获 3.PNG
    捕获4.PNG

    Render Mode "Stretched Billboard"
    Then when rotation.z = 45, it becomes so thin!
    捕获5.PNG
     
    Last edited: Jan 3, 2020
    atk_defender, Dec 29, 2019
    #1

  2. richardkettlewell

    richardkettlewell

    Unity Technologies

    Joined:
    Sep 9, 2015
    Posts:
    2,285
    What Unity version?
     
    richardkettlewell, Dec 29, 2019
    #2
    karl_jones likes this.

  3. atk_defender

    atk_defender

    Joined:
    Jun 26, 2018
    Posts:
    25
    2019.3.0f3 now. But the before version is just the same.
    fx_arrow.png
    TIM截图20200103175630.png TIM截图20200103180029.png
    TIM截图20200103175510.png
    TIM截图20200103175523.png
     
    atk_defender, Jan 3, 2020
    #3

  4. VladVNeykov

    VladVNeykov

    Unity Technologies

    Joined:
    Sep 16, 2016
    Posts:
    550
    Hey @atk_defender ,

    Scaling/rotating particles via the game object transform, especially in nested scenarios, can become tricky, with lots of things to consider: order of nested transformation, direction, velocity scale, emission shape, pivot offset application, etc.

    In your scenario, the stretched billboard particles as you have observed already behave differently than the regular billboards. You can try changing the scaling mode to Local to see if you get the desired result:


    Hope this helps!
    Please let us know if you encounter any other issues.
     
    VladVNeykov, Jan 3, 2020
    #4
    richardkettlewell and karl_jones like this.