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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 (144)

  1. C119d1ac939af5e5f41c1a05e03a517d?d=mm


    Jan 22, 2019 22:46

    Indeed this is a show stopper and not specific to VR as the OP title implies. I upgraded to 2018.3.2f1 and have this error spamming my console and killing my frame rate.

    How did this get past QA let alone be unresolved for so long? Can we have an ETA on a fix?

  2. 7f13c2609ade1034b0eab69f8e485e5a?d=mm


    Jan 22, 2019 09:33

    @WAGAGA i think we all have this. Hope the fix is coming soon

  3. E567259fc57a48aaffae92dd2ae60eed?d=mm


    Jan 22, 2019 09:20

    Does anyone have this situation, use unity 2018.3 build PCVR game,when close the game will lead windows crash!

  4. 82d4744b969643be9df4e146dcc80788?d=mm


    Jan 22, 2019 01:44

    Still facing this issue on 2018.3.2f1 in a VR project with the standard render pipeline. I notice it happens as soon as my character shoots (instantiating the first particle systems in the scene)

  5. 503834d37736f47cd539abd411df3a5e?d=mm


    Jan 21, 2019 18:21

    We have multiple different 0x0 access violation errors in particle jobs that started somewhere during 2018.3 _NOT_ VR related. Eg in ParticelGeomWrite->WriteVBOData

    As this is a null buffer two and it started to occured at the same time I hope they are related.

  6. 0c0c0d7be806131e8f24eab69f6dcf74?d=mm


    Jan 21, 2019 17:05

    What's the ETA to having this resolved, this is a real show stopper and we have a deadline. Hopefully it gets resolved quickly.

  7. 22204384958ada0286352f83fd2dbb97?d=mm


    Jan 19, 2019 20:36

    Confirmed that this issue still exists in 2018.3.2f1

  8. 95cfe7fd4e884b0551712b76f8de72be?d=mm


    Jan 18, 2019 22:22

    We actually hooked into the PlayerLoopSystem and disabled all particle related loops and saw the issue go away.... but we don't have particles. It is a useful high level switch to turn particles off so non-art devs can keep moving.

  9. 4d77ef840b5f005369801b7c2da69234?d=mm


    Jan 18, 2019 17:11

    Thx for thx for the update Richard. Any news on if a possible solution has been found?

  10. 4d77ef840b5f005369801b7c2da69234?d=mm


    Jan 18, 2019 13:44

    Thx for thx for the update Richard. Any news on if a possible solution has been found?

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