Zoom in/out the camera to fit any 3D Model

Questions
1

I have 3D models of different scale, should I scale the 3D File to fit the camera or should I perform camera zoom in/out to fit the 3D model?

2

You can use
camera.useFramingBehavior = true;
and later while importing the mesh define the target for the camera:
camera.setTarget(meshName);

Example: https://playground.babylonjs.com/#UKNERM#283

More info:

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3

@labris Love all your help on the forum !!! thanks a lot

4

If you want to do the opposite, you can call normalizeToUnitCube on the root node of each model to make them all 1 unit size.

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