How to set Perspective angle and Vanishing point dynamically

How to set different vanishing points and perspective angles on different movieclips:

mc1_mc.transform.perspectiveProjection = new PerspectiveProjection();

mc1_mc.transform.perspectiveProjection.fieldOfView = 60;

mc1_mc.transform.perspectiveProjection.projectionCenter = new Point(100,100);

mc2_mc.transform.perspectiveProjection = new PerspectiveProjection();

mc2_mc.transform.perspectiveProjection.fieldOfView = 100;

mc2_mc.transform.perspectiveProjection.projectionCenter = new Point(200,200);