SetCameraTarget on vector, does not zoom?

Questions
1

So basically i want to set the target to the center of the object. So i get the length in all directions and safe the half of them in a vector. Then i want to set the target of the camera to that point/vector.
That does work so far, but the camera does not zoom an, as it does with targeting a mesh.
I set the Framingbehavior to true and tried ZoomOn but that doesn’t really works either.

I rebuild an easy example scene in this playground : Babylon.js Playground

2

My best solution rn is, to make a box or some other mesh by MeshBuilder, set the position to my desired position and then set the camera target to that box

3

Indeed, the framing behavior won’t work in this case, as it relies on onMeshTargetChangedObservable which takes a mesh as parameter. So, when the target is a Vector3, null is passed to the observers of this observable.

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