Hi all,

How can i implement this effect? I have one first start image. In three time, with alpha mask?!!! i would clear the part of image and see the second image is behind.

First start image
http://imageshack.us/photo/my-images/233/17977135.gif/

First pass
http://imageshack.us/photo/my-images/829/98425113.gif/

Seconda pass
http://imageshack.us/photo/my-images/8/41703609.gif/

Thirth pass
http://imageshack.us/photo/my-images/96/84931006.gif/

Thanks
Sesilla