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Fixed in 2020.1

Fixed in 2019.3



Found in






Issue ID




Particle System Stop Action is not called when Culling Mode is set to "Pause and Catch-up" and Particle System is off camera



Steps to reproduce:
1. Open users attached project "Shuriken_Bug_Repro"
2. Enter Play mode
3. Wait until the Main Camera is enabled again
4. Notice that Particle System is still in the Hierarchy Window

Expected results: Particle System is Deleted after it stops emitting
Actual results: Particle System is not destroyed after it stops emitting offscreen

Reproducible with: 2018.3.0b2, 2018.4.3f1, 2019.1.9f1, 2019.2.0b7, 2019.3.0a8
Not Reproducible with: 2017.4.29f1, 2018.3.0b1

Note: Particle System Culling Mode appeared in 2018.3.0b2

RichardK proposed fix:
- Maintain a list of offscreen systems that use a stop action (build based on when we add/remove from the active systems list)
- Check them each update, to see if they have stopped whilst offscreen
- Fire event and remove from list, if needed

Comments (6)

  1. C8a6b7a592066688cc24a4915fd189f4?d=mm


    Feb 26, 2020 02:23

    Thanks so sharing this. I will again take a look at it.

  2. C8a6b7a592066688cc24a4915fd189f4?d=mm


    Feb 12, 2020 15:31

    I think the particle system should be on camera.

  3. 7c57120a677a7f384c0eb6f12179c01d?d=mm


    Feb 07, 2020 21:44

    Thanks for sharing these steps with us.

  4. 7e0f885fecc627b4670945f46feb36e1?d=mm


    Nov 26, 2019 05:27

    Thanks for providing here steps to reduce Particle System which is deleted after it stops emitting. Also impressed with your blog representation style.

  5. Fc91c4b9d1d058134978a6f215fd6fcb?d=mm


    Nov 18, 2019 11:49

    I have gone through this article named' PAUSE AND CATCH-UP'. It was a very informative article. The reproduce steps are explained step by step so that you can easily do your task. Thank you for sharing this article with us.

  6. 7aa8faa701c356f3d711e729c4487120?d=mm


    Jul 10, 2019 07:31

    A game framework can epitomize some reusable usefulness like a molecule framework, camera the executives or AI rationale like defined at . Interestingly, a game framework ought not be made for each substance in the game - as this would be a misuse of assets and it will be hard to keep up all relations between parts.

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