Question

How can we specify the position of an object .

Answer 1

By seeing it
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Answer 2

Let's say, I have a position variable
private Vector3 leaderPosition;
I want to specify another vector
private Vector3 followerPosition;
I want this followerPosition to be 5 meters away from leaderPosition and at an angle of 45 degrees behind him (diagonally behind him like a V formation).
How do I do that? How do I manually set "followerPosition" to something like
followerPosition = leaderPosition + (something);