Comments and answers for "Uses of Vector3.Dot"
http://answers.unity.com/questions/996635/uses-of-vector3dot.html
The latest comments and answers for the question "Uses of Vector3.Dot"Comment by Owen-Reynolds
http://answers.unity.com/comments/996824/view.html
Dot product is a standard math function, used in 2D/3D geometry, plus other things. It's no different from square root, Pow, Sin, Cos ... . If you want to, you can review your trig and learn about dot product in any non-Unity geometry reference.
Like all math, it's used when you have a formula that uses dot-product. If you never have one, don't use it. Have you ever used Mathf.nearestPowerOfTwo? Do you stay up late wondering why not?
In practice, most game developers have pretty weak trig, so LookAt, Angle ... do all the common trig for you. The fancy math stuff is for special cases.Mon, 29 Jun 2015 19:22:08 GMTOwen-Reynolds