Question by J-F · Apr 30, 2019 at 09:05 AM · vector3 quaternion math

Get direction of single axis from quaternion.

Hello. I have some trouble trying to offset a vector from a center point. I'm passing my object's position and rotation to my method and creating an offset vector 3 that points to the direction of it's corresponding axis. The problem is that when i try to multiply the offset vector3 by the rotation quaternion, The rotation is applied from the point which it's offset and the resulting vector flies around everywhere. Here's my code:

         public static void DrawAxis(Vector3 pos, Quaternion rot)
         {
             var posX = pos + new Vector3(1, 0, 0);
             DrawLine(pos, posX, Color.red, 2);
             DebugDisplay.DisplayInfo(posX, "X");
 
             var posY = pos + new Vector3(0, 1, 0);
             DrawLine(pos, posY, Color.green, 2);
             DebugDisplay.DisplayInfo(posY, "Y");
 
             var posZ = pos + new Vector3(0, 0 ,1);
             DrawLine(pos, posZ, Color.blue, 2);
             DebugDisplay.DisplayInfo(posZ, "Z");
         }

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