public Spatial rotate(float xAngle, float yAngle, float zAngle) {
        TempVars vars = TempVars.get();
        Quaternion q = vars.quat1;
        q.fromAngles(xAngle, yAngle, zAngle);
        rotate(q);
        vars.release();

        return this;
    }
Rotates the spatial by the xAngle, yAngle and zAngle angles (in radians),
(aka pitch, yaw, roll) in the local coordinate space.

@param xAngle the angle of rotation around the +X axis (in radians)
@param yAngle the angle of rotation around the +Y axis (in radians)
@param zAngle the angle of rotation around the +Z axis (in radians)
@return The spatial on which this method is called, e.g <code>this</code>.
jme3-core/src/main/java/com/jme3/scene/Spatial.java