Search Issue Tracker

By Design

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

Physics

-

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

  1. 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.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.