Rotation around Vector3

I know how to rotate around a Vector3 using RotateAround.
But I want it to be different. I want the rotation to be like that in Elite: Dangerous (just skip to 1:18 in the video)

How would I achieve this?

Oh, and please, if you're going to give examples, do it in C#

 

You want to rotate around a pivot point. Have you tried using this nifty function?

 

Yes it makes weird angles - if I move my cursor up and then sideways and down again, it will have a different z rotation than before

 

2 minutes google search and I found this: http://answers.unity3d.com/questions/25965/camera-orbit-on-mouse-drag.html
(Look at the last post, at the bottom of the page)

I quickly tested it and it works fine under Unity 5. The speed values have to be configure thought.

 

May I ask how you configure the settings for that script? I am having some trouble doing so

EDIT: Never mind, I managed to make it right. I'm using speed 20 on both axis

 

From my very quick testing: I liked these settings:

Spoiler

distance: 6
xSpeed: 10
ySpeed: 40
yMin: -50
Everything else on default.

But it really depends on your projects. I mostly found that xSpeed has to be much lower than ySpeed to feel right, for me.

 

OK. Thank you for replying
Ended up using X & Y speed on 20. It works well.
Thank you for that.