ArCore - ArKit Physics Scaling: How can I Make 1 Meter to 50 Unity Units?

Questions & Answers
1

1 meter in real life is 1 unity unit.

This poses a huge challenge because games dont need to have real world size objects in games.
you cant use an airplane with scale 1 to 1.

when you scale down the objects to 1 to 20 or 0.05 of their original size issues pop up in:

  • Physics including Collision detection, wheel colliders and ray casting.

  • Shadows and shadow quality.

  • light backing.

Unity is not made for 1/20 scake or less games. but AR doesnt make sense for 1 to 1 scaling.

How can I make 1 Meter in real world into 50 unity units or 100?

2

Just putting the answer here as I had the opposite problem. You just need to adjust the scaling of the “AR Session Origin” gameObject. To make 1 real meter 50 unity units, then set the x,y,z scaling to 50 on this gameObject.