Available on Asset Store: https://assetstore.unity.com/packages/tools/utilities/adjust-pivot-112883
Forum Thread: https://forum.unity.com/threads/adjust-pivot-without-using-an-empty-parent-object-open-source.520178/
Discord: https://discord.gg/UJJt549AaV
This script allows you to change the pivot point of an object without having to create an empty GameObject as the pivot point. There are two types of pivot adjustments:
a. If the object does not have a mesh (MeshFilter, to be precise), then the script simply changes the positions and rotations of child objects accordingly
b. If the object does have a mesh, then the script first creates an instance of the mesh, adjusts the mesh's pivot point by altering its vertices, normals and tangents, and finally changes the positions and rotations of child objects accordingly
Not tested with SkinnedMeshRenderer.
There are 5 ways to install this plugin:
- import AdjustPivot.unitypackage via Assets-Import Package
- clone/download this repository and move the Plugins folder to your Unity project's Assets folder
- import it from Asset Store
- (via Package Manager) add the following line to Packages/manifest.json:
"com.yasirkula.adjustpivot": "https://github.com/yasirkula/UnityAdjustPivot.git",
- (via OpenUPM) after installing openupm-cli, run the following command:
openupm add com.yasirkula.adjustpivot
Open the Adjust Pivot window via the Window-Adjust Pivot menu.
To change an object's pivot point, you can create an empty child GameObject and move it to the desired pivot position. Then, you can press the Move X's pivot here button to move the parent object's pivot there. It is safe to delete the empty child object afterwards.
Note that if the object has a mesh (option b), to apply the changes to the prefab, you have to save the instantiated mesh to your project. Otherwise, the asset will be serialized in the scene and won't be available to the prefab. You have two options there:
- save the mesh as asset (.asset)
- save the mesh as OBJ (.obj)
Afterwards, you can safely apply your changes to the prefab.
There are a few options that may be helpful in certain circumstances:
-
Create Child Collider Object On Pivot Change: imagine your object has a BoxCollider and you rotate the pivot by 45 degrees. A BoxCollider itself can not be rotated and therefore, your BoxCollider will no longer be aligned with your object. If you enable this option, however, a child object with a BoxCollider will be created and it will be aligned with your object properly. But be aware that the original BoxCollider will not be removed automatically to prevent any Inspector references to it from getting lost. You should remove the original BoxCollider manually
-
Create Child NavMesh Obstacle Object On Pivot Change: if enabled, a child object with NavMesh Obstacle component will be created automatically when pivot changes. This child object will be aligned with your object properly