public void ConstrainedAlignAxis(int nAxis, Vector3f vTo, Vector3f vAround)
{
Vector3f axis = GetAxis(nAxis);
float fAngle = MathUtil.PlaneAngleSignedD(axis, vTo, vAround);
var rot = Quaternionf.AxisAngleD(vAround, fAngle);
Rotate(rot);
}
public void Update()
{
Vector3f delta = (Vector3f)Input.mousePosition - last_mouse_pos;
Transform x = mainCamera.transform;
if (Input.mouseScrollDelta.y != 0)
{
if (mainCamera.orthographic)
{
mainCamera.orthographicSize = MathUtil.Clamp(
mainCamera.orthographicSize - ScrollSpeed * Input.mouseScrollDelta.y, 1, 1000);
}
}
else if (Input.GetMouseButton(1) || Input.GetMouseButton(2))
{
mainCamera.transform.position +=
(-PanSpeed * delta.x * x.right) +
(-PanSpeed * delta.y * x.up);
}
else if (Input.GetMouseButton(0))
{
Quaternionf rotatelr = Quaternionf.AxisAngleD(x.up, -RotateSpeed * delta.x);
Quaternionf rotateud = Quaternionf.AxisAngleD(x.right, RotateSpeed * delta.y);
Quaternionf cur_rotation = TargetObject.transform.rotation;
Quaternion new_rotation = rotatelr * rotateud * cur_rotation;
TargetObject.transform.rotation = new_rotation;
}
last_mouse_pos = Input.mousePosition;
}
public static Quaternionf FromToConstrained(Vector3f vFrom, Vector3f vTo, Vector3f vAround)
{
float fAngle = MathUtil.PlaneAngleSignedD(vFrom, vTo, vAround);
return(Quaternionf.AxisAngleD(vAround, fAngle));
}
