rotation issue

hi, i have a script for my gun rotation however while it only take mouse's X and Y axises and only should rotate in x and y yet for some reasons it also rotate in z as well when rotating in both x and y, is there any way that i could do something to avoid my gun rotate in z?

here is the rotation part of my script:

Code (csharp):

1.  
2. // MX=mouse x axis
3.         RoX = Input.GetAxis("MX") * (Time.fixedDeltaTime * RoSp);
4.         transform.Rotate(-RoX, 0, 0);
5. //MY= mouse y axis
6.         RoY = Input.GetAxis("MY") * (Time.fixedDeltaTime * RoSp);
7.         transform.Rotate(0, RoY, 0);
8.  

 

Quaternions are strange beasts, and it's possible to rotate in every axis by only rotate on two if you're not controlling it more rigidly. (For example: Face forward; yaw left 90 degrees; pitch down 90; yaw right 90; and suddenly, you've rolled 90 degrees left, without ever rolling!)

The best solution in my experience is to store the X and Y rotations separately in your script, and start the rotation fresh each frame rather than using transform.Rotate.

Code (csharp):

1.  
2. transform.rotation = Quaternion.Euler(accumulatedX, accumulatedY, 0);
3.  

 

Y in Unity is depth, not vertical, when dealing with 3d space. You want to have your mouse input y apply to the z axis of your camera, not y.

 

No, it's vertical. X = left/right, Y = up/down, Z = forward/back.

--Eric

 

Whoops, sorry, brain still booting up.