Wrong copying rotation in imported mesh (Gizmo)

Questions
1

Hello!

There are two cars. I would like car2 to exactly follow the rotation of car1 when I use the gizmo rotation.

https://playground.babylonjs.com/#GCT1WE

I found a crutch like this:

gizmoManager.attachToMesh(root2)
gizmoManager.attachToMesh(root1)

I would like to get rid of this crutch, because this adds unnecessary code. Are there any options to synchronize quaternions without this crutch?

2

Hi! :smiley:

Seems that when the gizmo manager attached to one of the meshes, it changed its scaling and rotation:
image
vs
image

If I force the two to have the same scaling and rotation before attaching the gizmo, then they stay synchronized:

    root1.scaling = new BABYLON.Vector3(1, 1, 1);
    root1.rotationQuaternion = BABYLON.Quaternion.FromEulerAngles(0,Math.PI,0);
    root2.scaling = new BABYLON.Vector3(1, 1, 1);
    root2.rotationQuaternion = BABYLON.Quaternion.FromEulerAngles(0,Math.PI,0);
    gizmoManager.attachToMesh(root1)

Sync rotations with Gizmo | Babylon.js Playground (babylonjs.com)

2 Likes
3

Thanks for the answer!

This means that when adding a new mesh to the scene, I just have to explicitly specify not only quaternions, but also scaling. Then the turns coming from the gizmo will be correct.

1 Like