Hi,

  I have a scene with a primitive within a Container3D and wish to be able to use the MouseWheel event for Zoom In/Out such container.

  The fact is that I can not guess how to accomplish this.

  I have the following code:

private function MouseWheel(event:MouseEvent):void {
  var distance_old:Number = distance;
  distance   -= event.delta*4;
 
  if ( (distance - camera.distance) / zoomSpeed > 0 ) {
  container.scaleX=container.scaleY=container.scaleZ = (distance - camera.distance) / zoomSpeed;
  } else distance = distance_old;
 
  }

But the transitions when moving the wheel are strong and Horrible and sometimes do not work. The behavior is strange.

What’s wrong?

If you want smooth movements you should do them in the loop and not in the mouseWheelHandler function, so when you catch the mouse event change a var and set it to your final position, then in the loop apply that value smoothly, a little each frame using deltaTime and some Lerp function.

Ok, I see, but, could you please post here some code I could use. The fact is that my problem is that I do not know the way to do it.

thanks.