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Fixed in 2017.4.X

Fixed in 2018.2.X



Found in


Issue ID




Particle System updates lights when there are no active particles



ParticleSystem with the emission module disabled or an emission rate of 0 still spends time updating particles and any associated point lights.
Steps to reproduce:
1. Open attached project
2. Open "TestScene" Scene
3. Press play
4. Toggle EmissionModule active state and rate over time value with 'E' and 'R'
-Inspect "Update Lights" calls in profiler

Expected result: ParticleSystems should use very little (if any) time to update lights in the profiler when they have no active particles.
Actual result: "Update Lights" are still called constantly even when there are no active particles (emission module is disabled or emission rate is set to 0)

Note: ParticleSystems are spending time updating their particles and lights unless Stop is called

Reproduced on: 2018.1.4f1, 2018.2.1f1, 2018.3.0a6

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