How to place 3d model in arcore with accurate size of 3d model in real life

Question

I want to place a chair in arcore with actual size of chair in real life. The user should not able to zoom in or zoom out that chair in arcore.

Answer 1

The coordinate system in world space uses meters as the units. So if you create your model in Blender with 1 unit height it is 1 meter. You can disable scaleController in TransformableNode to disable scaling:

node.scaleController.isEnabled = false