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Fix In Review for 2022.3.X

Votes

1

Found in

2022.3.30f1

6000.0.3f1

Issue ID

UUM-72281

Regression

Yes

The particle system prewarm flag is ignored when calling the Start function after the Stop function

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Reproduction steps:
1. Open the attached “BugRepro” project
2. Open the “Scenes/SampleScene” Scene
3. Enter the Play Mode
4. Press the “Space” Key to stop the particle system
5. While particle count is decreasing press the “Space” Key again
6. Observe the Game View

Expected result: The particle system spawns 150 new particles instantly
Actual result: The particle system starts creating new particles at the particle system's spawn rate

Reproducible with: 2022.3.28f1, 2022.3.30f1, 6000.0.3f1
Not reproducible with: 2021.3.38f1, 2022.3.27f1

Reproducible on: Windows 10
Not reproducible on: No other environment tested

Comments (1)

  1. SVC-Games

    May 17, 2024 14:36

    *Temporal workaround:* Call Particles.Clear() before calling Particles.Play() again. As long as NO particles are alive when calling Play, prewarm will work correcly.

    After calling stop there may be a few seconds where there are active particles in the system, depending on their lifetime. If play is called before those last particles die, the system will start spawning as described, but without instantly spawning prewarmed particles to match a fully prewarmed particle system.

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