Search Issue Tracker
By Design
Votes
2
Found in
2020.3.39f1
2021.3.10f1
2022.1.17f1
2022.2.0b8
2023.1.0a11
Issue ID
UUM-14412
Regression
No
unity_MatrixPreviousM is not updating when the GameObject changes position
Reproduction steps:
1. Open the attached project “CustomSRP_MotionVectors”
2. Open the “Scene 01_MotionVector” Scene
3. Enter Play mode
4. Enable the Frame Debugger
5. Select one of the “Draw Mesh” calls
6. Observe the value of the unity_MatrixPreviousM matrix
7. Disable the Frame Debugger and unpause the Scene
8. After the positions of the GameObjects change, enable the Frame Debugger
9. Select the same “Draw Mesh” call
10. Observe the value of the unity_MatrixPreviousM matrix
Expected result: The value is updated
Actual result: The value is the same
Reproducible with: 2020.3.39f1, 2021.3.10f1, 2022.1.17f1, 2022.2.0b8, 2023.1.0a11
Reproducible on: macOS 12.4 (Intel)
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
- Unity CIL Linker fails on Player build when persistent listeners have "<" and ">" in their XML attribute names
- ”Lighting data asset ‘LightingData’ is incompatible with the current Unity version…” warnings are thrown when saving Indoors (URP) and Outdoors (URP) Scenes as Scene Templates
- [iOS] The screen blinks when transitioning from custom to Unity splash screen
- [macOS] ”Ignoring depth surface load action as it is memoryless” warnings are thrown when taking Game View Snapshot
- UI Builder Inspector scrolls back up when changes on an expanded but not fully displayed Inspector tab are saved
Resolution Note:
Camera only generates motion vector data when the depthMode is set correctly. (User error)