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By Design
Votes
0
Found in
2020.3.47f1
2021.3.24f1
2022.2.18f1
2023.1.0b15
2023.2.0a14
Issue ID
UUM-35020
Regression
No
Skinned Mesh Renderer bounds are not updated when moving bones
Reproduction steps:
1. Open the attached “ASDQWE” project
2. Open the “Assets/OutdoorsScene.unity” Scene
3. In the Hierarchy Window select Crusader tank_prefab > Crusader_tank_Reference > Crusader_tank_Hips > Crusader_tank_LeftUpLeg
4. In the Inspector Window, under the Transform Component, change the Rotation > X property to -90
5. In the Hierarchy Window select Crusader tank_prefab > body > body12
6. Observe the Skinned Mesh Renderer bounds in the Scene View
Expected result: Skinned Mesh Renderer bounds are updated to the moving bones
Actual result: Skinned Mesh Renderer bounds remain the same
Reproducible with: 2020.3.47f1, 2021.3.24f1, 2022.2.18f1, 2023.1.0b15, 2023.2.0a14
Reproducible on: Intel MacOS 13.3.1
Note: If you position the Camera (In the Scene View) to see the left leg, but not the Skinned Mesh Renderer bounds, the left leg will vanish.
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Resolution Note:
SkinnedMeshRenderer does not update the render bounds by default. Change the "update when off screen" setting to true in order to recalculate the render bounds every frame based on the pose.
see also:
https://docs.unity3d.com/2023.1/Documentation/Manual/class-SkinnedMeshRenderer.html