How to set the minimum zoom scale of the model

[haoguang_shen]

When I use the phone , if i zoom scale the model to minimum , model will disappear,so i must limit min value of zoom scale.

[Cedric]

If you move the camera away from the object, it will be clipped in the far distance by the maxZ property:

Camera | Babylon.js Documentation

Also, to see entirely your object, you will have to take the object bounding sphere into account. That means, the max distance from the camera to your object is camera.maxz - object.bondingSphere.radius (pseudo code here)

[inteja]

There’s also camera.lowerRadiusLimit