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Fixed in 2020.1.X

Fixed in 2018.4.X, 2019.3.X



Found in





Issue ID




Billboard Particle System rolls in the Game View with "Allow Roll" disabled when a Camera is rotating around it

Visual Effects - Legacy


Repro steps:
1. Open user attached project
2. Enter Play Mode
3. Observe the Game View

Expected: The Camera rotates around the cloud without it rotating itself
Actual: The cloud rotates from time to time and only in the Game View

Reproducible with: 2018.3.0b2, 2019.1.0a1
Not reproducible with: 2017.4.11f1, 2018.2.9f1

  1. richardkettlewell

    Oct 28, 2019

    We are investigating ways to address this issue but it is not trivial, so a fix may not come in the short term.

    For anyone hitting this issue, we advise reverting to the scripting method mentioned here:

    If using Unity 2019, rewriting it to use the C# Job System with Burst will make it run very efficiently. Details on that API can be found here:

Comments (25)

  1. FutureVisual

    May 03, 2019 15:49

    This makes particles look terrible in VR. Needs fixing ASAP!

  2. PatrickHogenboom

    May 02, 2019 12:54

    This bug breaks the whole reason why the Allow Roll checkbox exists in the first place, this is bad!

    I also reported it, it has been reproduced and it's been sent it to engineering to get fixed.
    What is the status ?
    Will it make it into the 2018 LTS version ?

  3. ImmotionMatt

    Mar 13, 2019 15:06

    Doesn't work in 2018.3.8f1

  4. jykholodia

    Feb 26, 2019 10:39

    Definitely! Still not working in 2018.3.6f1.
    Doing it with a MonoBehaviour is really slow.

  5. Shofixti

    Feb 19, 2019 16:02

    Still a pressing issue for AR/VR development.

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