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Fixed in 2018.3

Fixed in 2019.1



Found in





Issue ID




[VR] Particle Systems cause "task.rasterData.indexBuffer == NULL" error and lead to graphical glitches



Steps to reproduce:
1. Create a new project
2. Enable VR
3. Create a particle system
4. Enter playmode and put it in your HMDs view
5. If error doesn't show, repeat Stop / Play of playmode again. (when doing this i can repro it with the MockHMD)

Result: "task.rasterData.indexBuffer == NULL" error in the console and potential graphical glitches

Reproduced on 2018.3.0b8, 2018.3.0b10, 2019.1.0a9
Not reproduced on 2018.2.16f1, 2018.3.0a1, 2018.3.0b7
Regression introduced in 2018.3.0b8

- Is known to also cause memory leaks

  1. Response avatar

    Resolution Note (fix version 2018.3):

    The fix has now landed in our various release versions. 2019.2.0a4, 2019.1.0b2 (available approx 1st February), 2018.3.5f1 (available approx 6th February). Thank you for your patience.

Comments (139)

  1. B181d45c4808017ecd804d852fa5472b?d=mm


    Jan 31, 2019 17:50

    Huzzah! Glad to here the great particle drought of 2018/2019 is to finally be over :D

  2. Ffa8f89534046843a34b50fead4aec99?d=mm


    Jan 31, 2019 15:39

    Excellent news! Many thanks again, Richard for keeping us updated on this! Please keep it up in future!

  3. Ffff6d6f1bcc2a29473e5f3fbeb2ea11?d=mm


    Jan 31, 2019 10:51

    And another update - the fix has passed testing for 2018.3.5 and will definitely be in that patch.
    Upgrade to that patch when it is released to get the fix. (hurrah!)

    Thanks again for everyone's patience and understanding while we fixed this horrible bug.

    The tentative release date for the patch is 6th February, though it might end up coming out a day or so later, depending on how smoothly our release cycle goes.

  4. Ffff6d6f1bcc2a29473e5f3fbeb2ea11?d=mm


    Jan 31, 2019 09:40

    Another update for everyone: The fix has now successfully landed in 2019.1.0b2, which should be available approx 1st February. 2018.3 testing is still underway.

  5. 52d039d5d5d7f28dbed71c033e247774?d=mm


    Jan 31, 2019 06:00

    So, where can I download the fix for 2018.3.0f2 ?

  6. Ffff6d6f1bcc2a29473e5f3fbeb2ea11?d=mm


    Jan 30, 2019 22:49

    ADNARO, yes this issue is probably the same problem you are seeing.

  7. 09fc8d8421bfb6caf76af5ab75979db2?d=mm


    Jan 30, 2019 15:27

    Hi guys, just wondering if my issue fits into this category and upcoming fix or whether I should be looking elsewhere.

    I'm running a bunch of particle effects in VR and seem to have huge memory usage (~35GB) when entering playmode for the *second time after opening Unity* (first playmode attempt is really smooth).

    Profiler shows XR.WaitForGPU at ~150ms and under Memory, I'm getting the majority being taken up by GfxDriver.

  8. Ffa8f89534046843a34b50fead4aec99?d=mm


    Jan 30, 2019 10:09

    Many thanks for the updates and now the fix! We very much look forward to the release.

  9. Eedf8eed6015e1c3ed12c75bad501b17?d=mm


    Jan 30, 2019 07:20

    Finally!! The game felt soo empty without particles :-) - But how do we get the free cookies?

  10. E567259fc57a48aaffae92dd2ae60eed?d=mm


    Jan 30, 2019 01:55

    Good!!!!!!!Thanks unity, my game will hot!

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