dali.stage.add( imageActor );
// start it of tilted around the y-axis
-imageActor.rotation=new dali.Rotation(90, 0, 1, 0);
+imageActor.orientation=new dali.Rotation(90, 0, 1, 0);
var twistEffect = createTwistEffect();
imageActor.setShaderEffect( twistEffect );