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Fixed in 8.2.X



Found in [Package]

9.0.0, 8.1.0, 8.0.1.

Issue ID




[VFX Graph] Debug modes are able to overwrite the capacity on locked assets.

Package: Visual Effect Graph


Simple Particle System and Swarm Particle System can not be used again once its capacity set to 0 in Efficiency debug mode when you edit the VFX Graph from its preset asset.

Steps to repro:
1. Create a new HDRP project
2. GameObject > Visual Effects > Visual Effect.
3. Inspector > Asset Template > Simple Particle System > Create its preset asset.
4. Select preset asset > Edit > Change Debug mode to Efficiency.
5. Click Set Capacity 0 button.

Actual Result:
Unable to use Simple Particle System VFX Graph again.

Expected Result:
Simple Particle System VFX Graph can be used again.

Reproducible in:
2020.2.0a9, 2020.1.0b8, 2020.1.0a23 with Package Version 9.0.0, 8.1.0, 8.0.1.

Note: Could not test on Mac due to

Occurring on Windows 10.

  1. Resolution Note (fix version 8.2):

    In the provided scenario, the Debug's Efficiency Plot is setting the capacity to 0, so it's expected no particle to spawn. Increasing the capacity in the Initialize block allows particles to be spawned again.

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