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Won't Fix
Votes
0
Found in
2020.3.39f1
2021.3.9f1
2022.1.16f1
2022.2.0b7
2023.1.0a9
Issue ID
UUM-14673
Regression
No
Parenting rescales objects when using SetParent multiple times
Reproduction steps:
1. Download the project from Google Drive and open it
2. Connect Quest device with Oculus Air Link and Press the Play button in Editor to enter the Play Mode
3. Move the bottle from the left and place it on the middle blue object and then on the right blue object
Expected result: The bottle does not change the size
Actual result: The bottle shrinks
Reproducible with: 2023.1.0a9, 2022.2.0b7, 2022.1.16f1, 2021.3.9f1, 2020.3.39f1
Reproducible with devices:
VLNQA00379, Oculus (Quest 2), Android 10, CPU: Snapdragon XR2, GPU: Adreno (TM) 650
Reproduced on:
Windows 10 Pro 21H2
Notes:
- If Blender is not installed the bottles won’t be rendered in Editor and in build
- Using SetParent multiple times rescales objects
- Moving a bottle from left to the blue objects calls Magnet.cs where SetParent is invoked
- Reproduction video is uploaded in the original Jira incident case
-
EusebiuMarcu
Oct 05, 2022 11:54
With all due respect, this is a bug, so the Won't fix resolution is not OK.
What you propose is a workaround that might not work in certain cases...
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Resolution Note:
Calling SetParent() will inherit any scale changes from the ancestors on your object.
So either you need to make sure all ancestors have a local scale of (1,1,1) or use the SetParent() function with the argument worldPositionStays=true and manually adjust the position afterward. From the docs about worldPositionStays: "If true, the parent-relative position, scale, and rotation are modified such that the object keeps the same world space position, rotation, and scale as before."
See the documentation here: https://docs.unity3d.com/ScriptReference/Transform.SetParent.html