/*
* Create an axis tripod from a supplied forward- and up-axis
* */
public static AxisTripod AxisTripodFromForwardUp(Vector3 forward, Vector3 up)
{
AxisTripod tripod = new AxisTripod();
Quaternion q = Quaternion.LookRotation(forward, up);
tripod.forward = q * Vector3.forward;
tripod.up = q * Vector3.up;
tripod.right = q * Vector3.right;
return(tripod);
}
/*
* Create an axis tripod from a supplied up-vector
* */
public static AxisTripod AxisTripodFromUp(Vector3 up)
{
AxisTripod tripod = new AxisTripod();
tripod.up = up.normalized;
tripod.right = Vector3.right;
float dot = Vector3.Dot(tripod.up, tripod.right);
if (dot == 1f)
{
tripod.right = Vector3.forward;
}
else if (dot == -1f)
{
tripod.right = Vector3.back;
}
tripod.forward = Vector3.Cross(tripod.right, tripod.up).normalized;
tripod.right = Vector3.Cross(tripod.up, tripod.forward);
return(tripod);
}
/*
* Create an axis tripod from a supplied forward- and up-axis
* */
public static AxisTripod AxisTripodFromForwardUp(Vector3 forward, Vector3 up)
{
AxisTripod tripod = new AxisTripod();
Quaternion q = Quaternion.LookRotation(forward, up);
tripod.forward = q*Vector3.forward;
tripod.up = q*Vector3.up;
tripod.right = q*Vector3.right;
return tripod;
}
/*
* Create an axis tripod from a supplied up-vector
* */
public static AxisTripod AxisTripodFromUp(Vector3 up)
{
AxisTripod tripod = new AxisTripod();
tripod.up = up.normalized;
tripod.right = Vector3.right;
float dot = Vector3.Dot(tripod.up, tripod.right);
if (dot==1f) tripod.right = Vector3.forward;
else if (dot==-1f) tripod.right = Vector3.back;
tripod.forward = Vector3.Cross(tripod.right, tripod.up).normalized;
tripod.right = Vector3.Cross(tripod.up, tripod.forward);
return tripod;
}
