Search Issue Tracker
Duplicate
Duplicate in 2023.2.X
Votes
0
Found in
2020.3.46f1
2021.3.22f1
2022.2.13f1
2023.1.0b10
2023.2.0a8
Issue ID
UUM-31321
Regression
No
A moving collider changes the position of articulation bodies when they are on the same level or below it in the hierarchy
Reproduction steps:
1. Open the attached “AB Test” project
2. Open “SampleScene”
3. Enter Play mode
4. Observe the yellow text
Expected result: the position numbers do not change - the articulation bodies are not moving
Actual result: the position numbers change - the articulation bodies are moving
Reproducible with: 2020.3.46f1, 2021.3.22f1, 2022.2.13f1, 2023.1.0b10, 2023.2.0a8
Reproducible on: macOS Catalina 10.15.7 (Intel), Windows 10 (by the reporter)
Notes:
- Also reproducible in Standalone Player
- If the collider is on a root articulation body it moves even if "Immovable" is checked, but only if it's a box collider
- The issue happens when the position or rotation of the collider is constantly changing
-
Resolution Note:
The problem in the linked case applies the same way for Articulation Bodies. The Articulations themselves are meant to be moved via the use of Articulation Body joints as opposed to "deforming" the Articulation's Colliders every frame.
The issue that Triggers (which do not contribute the center of mass) also cause this behavior is tracked here: https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-30798
Duplicate of https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-29082
-
Resolution Note (2023.2.X):
The problem in the linked case applies the same way for Articulation Bodies. The Articulations themselves are meant to be moved via the use of Articulation Body joints as opposed to "deforming" the Articulation's Colliders every frame.
The issue that Triggers (which do not contribute the center of mass) also cause this behavior is tracked here: https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-30798
Duplicate of https://issuetracker.unity3d.com/product/unity/issues/guid/UUM-29082
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- Line Brush blue outline appears at incorrect position when painting start of line in Tile Palette
- [URP] All materials render black when building via batchmode or without rendering Scene/Game view in Editor if Decal renderer Technique is set to "Automatic"
- Player Tags list shows extra blank space behind the scrollbar in the "Player Tags" settings window
- Edit Angular Limits gizmo handles are small and easy to miss-click in the Scene view
- Duplicate Player Tag save fails silently with no error or validation message
This is a duplicate of issue #UUM-29082