Rotate Vector3

Question

Hi guys !

I need your help for this math problem :

alt text

I have this 2 black vector (construct by 3 Vector3, p1, p2 and p3), and I need to find the p4 Vector3.

I have do this :

 float angle = Vector3.Angle(p3 - p2, p2 - p1);

 p4 = p1 + (p1 - p2); //blue vector
 
 p4 = Quaternion.AngleAxis(angle, Vector3.forward) * p4;

But not work. What's wrong ?

Thanks in advance :).

Answer 1

Answer by Rekyem · May 17, 2017 at 07:26 AM

Anyone can me help ?

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