Your 3D world is measured in 'Units'.
What are Units? Whatever you want them to be. A unit can be a centimetre, a metre, a mile... whatever.
Provided you establish what scale you're using at the start, and keep to it throughout, you won't get too many problems.
What are Units? Whatever you want them to be. A unit can be a centimetre, a metre, a mile... whatever.
Provided you establish what scale you're using at the start, and keep to it throughout, you won't get too many problems.