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Won't Fix
Won't Fix in 2023.3.X
Votes
0
Found in
2020.3.44f1
2021.3.17f1
2022.2.4f1
2023.1.0b1
2023.2.0a3
2023.3.0a3
Issue ID
UUM-29646
Regression
No
Compute buffer isn't updated after a few seconds when ComputeBuffer.GetData() is not used
Reproduction steps:
1. Open the “InteropUnityCUDA“ Project
2. Open the “Assets/Scenes/InteropSample.unity” Scene
3. Enter the Play Mode
Expected result: Particles in the middle of the screen do not stop
Actual result: Particles in the middle of the screen stop after a few seconds
Reproducible with: 2020.3.44f1, 2021.3.17f1, 2022.2.4f1, 2023.1.0b1, 2023.2.0a3
Reproduced with: Windows 10 22H2
Note: Uncomment line 42 of ParticleDrawer.cs and the particles will not freeze
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Resolution Note:
It's a rare use case since the user is using custom plugin to modify the compute buffer data. Calling GetData() is a workaround to fix this as it inserts a memory barrier before reading back.
Resolution Note (2023.3.X):
It's a rare use case since the user is using custom plugin to modify the compute buffer data. Calling GetData() is a workaround to fix this as it inserts a memory barrier before reading back.