First pre and post tsunami images were lined up as much as possible with the pre layed on top of the post then made translucent. It was then brought back up to full and the coastlines and major roads traced. These were then imported into Flash. The images were left as they were, but the preimage was transfromed into a button and the phases of the button were then edited. In the button phase editing the post image was turned into a roll over effect of the preimage button. The result is above. the devestation caused by the December 2004 Tsunami is incredibly apparent and large scale.