Transform.RotateAround(Vector3 axis, float angle) - what happens with only two arguments?

Questions & Answers
1

There are two ways to call Transform.RotateAround -

Transform.RotateAround(Vector3 point, Vector3 axis, float angle)
Transform.RotateAround(Vector3 axis, float angle)

The first way is documented in the manual and makes total sense. The second one is a complete mystery that is currently blowing my mind. Anybody have experience with this?

The following of my assumptions have turned out to be false:

  • It does not just default to “Vector3 point = Vector3.zero”
  • It does not just default to “Vector3 point = transfrom.position”
  • It does not even call the 3-argument version of Transform.RotateAround. In fact, the 3-argument version of Transform.RotateAround calls the 2-argument version after doing a position calculation.

I’m running out of ideas, and this is blocking me at the moment… I’d love to hear from anyone with any knowledge on this!

Thanks =)

2

The answer to this is just a ridiculous example of method overloading inconsistency. Here’s what I just discovered:

Transform.RotateAround(Vector3 point, Vector3 axis, float angle)

^ takes radians.

Transform.RotateAround(Vector3 axis, float angle)

^ rotates around transform.position… and takes degrees

3

It appears that the function now takes radians, not degrees. However, the documentation still says it’s in degrees…!

4

In Unity 5.2, 3 it has been fixed Transform.RotateAround angle parameter is really in degrees.

While, RotateAround overload without Point parameter is now deprecated.