threejs: How the Unit of Measure of represent for position?

Question

If the mesh is moving from position (0,0,0) to (10,0,0). The new position of the mesh in x direction is "10". So, what will be the UOM of position. will it be in meter or millimeter or centimeter.

i.e. 10 m or 10 mm or 10 cm or 10 px ?

Answer 1

The official answer is that ThreeJS uses SI units. Thus distances are in meters:

https://github.com/mrdoob/three.js/issues/6259