Why does angular rotation not affect the `rotation` property of the transform node?

Questions
1

The mesh position changes as expected, but the rotation doesn’t, even though it’s visibly rotating. Why is that? How can we read the mesh’s current rotation?

2

The setAngularVelocity method is changing the rotationQuaternion property of the box rather than rotation property. You can refer to it by swapping

label.text = `pos: ${box.position.y.toFixed(3)}; rot: ${box.rotation.y.toFixed(3)}`

with

label.text = `pos: ${box.position.y.toFixed(3)}; rot: ${box.rotationQuaternion.y.toFixed(3)}`

More details about rotation quaternions here:

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