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Votes
0
Found in
2019.4
2019.4.29f1
2020.3
2021.1
2021.2
2022.1
Issue ID
1356346
Regression
No
Configurable Joint behavior is noticeably different depending on Fixed Timestep
How to reproduce:
1. Open the attached project "PhysicsTest_Modified.zip"
2. Open "SampleScene" Scene
3. Enter Play Mode
4. Notice the behavior
5. Change Fixed Timestep to 0.001041667 (Edit > Project Settings > Time > Fixed Timestep)
6. Notice the behavior again
Expected result: The behavior stays similar despite used timestep
Actual result: The behavior is noticeably different
Reproducible with: 2019.4.31f1, 2020.3.20f1, 2021.1.24f1, 2021.2.0b15, 2022.1.0a12
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Resolution Note:
With higher fixedDeltaTime values you tend to get a less accurate simulation and what is perceived as "expected" in this case, may just be the result of the simulation being inaccurate. Alternatively with drastically smaller fixedDeltaValues the simulation should be much more accurate and show the closer result to what the "true" result of the simulation should be based on the Joint settings.