从一个角度看3D空间中的一个点

Question

I'm currently working on a camera for a game. But I got stuck at the rotation.

When I move my mouse across the x- or y-axis, I want the camera to rotate around my character.

What would be a formula to calculate this vector, if the distance to the character is always the same?

I am doing this in Unity, with C#, if this is of any help.

Answer 1

this function may help: transform.RotateAround(Vector3 axis, float degree) you can read the Unity Script Reference for more info.

-oh and I think you should tag your next questions with "unity3d" but you get the best Unity3d-help at UnityAnswers-Forum http://answers.unity3d.com/index.html .

Answer 2

You can utilise spherical coordinates — they seem to fit more than Euler angles for the purpose of camera movement. The Cartesian vector which you need can be obtained by simple formulas as described there.