Hi,
I have an object that is rotated around the z axis a little. What transformation do I need to apply if I want to rotate the whole object around the vertical axis. If I write
[java]obj_phy.setPhysicsRotation(this.getLocalRotation().mult(new Quaternion().fromAngleAxis(-0.01f, new Vector3f(0, 1, 0))));[/java]
it always rotates around the y-axis of the object, which of course isn’t vertical anymore.
I’ll give you a hint.
Vectors represent 3 axis. X, Y and Z.
Also, 0 sometimes means “nothing” or “off” and 1 “on”…
I know, I solved the first problem: I had to multiply the vector with the quaternion and not the quaternion with the vector.
If I write getPhysicsRotation().getColoum(1), does this give me the y rotation of the object?
If that method is like the quaternion one then column 1 represents the Y axis, or your “facing”. But that depends on a lot of things. In a typical setup that would true.
Allright, it doesn’ work 
How would I get just the rotation around the y-axis of a RigidBodyControl object?
quaternion.toAxes()/toAngles()?
Yes, it works, thanks.