Zoom your finger to keep the model from suddenly getting bigger or smaller

Questions
1

When the imported model is scaled in the mobile terminal, it will suddenly become larger or smaller. How to limit it when the finger is scaled？Don’t make the model suddenly too big or too small.

glTF Loader Demo | Babylon.js Playground (babylonjs.com)

2

You can use the lowerRadiusLimit and upperRadiusLimit properties of the arc rotate camera:

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3

Adding to the above, there’s also a number of settings you can use on precision/speed, such as i.e.
’ pinchPrecision’ and ‘useNaturalPinchZoom’

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