Q:

this is pretty cool
how did U make such a realistic water cutoff ?


A: I had pictures of a real beach where there was a very hard cutoff between the light blue and the deep sea. I wanted to simulate the effect - I created a mask file in Autodesk Animator 1.0. It was half black - half white with a freehand line inbetween. Then I used the SOFT filter over the whole picture to smooth the cutoff. The file was only 320x200 GIF and as I tried to use it as a mask map to control the blue color of the seaground, it got pixelated at rendering resolution of 1024x768! I had two choices - drawing it again at higher resolution in Photoshop or Animator Pro, or softing it even more with the mapping blur filter in the Material Editor. I set the blur to almost 100 (default 7!!!) and... you see the result. I liked it so much that I left it this way...
Addition

For the waves, I created a black&white image in Autodesk Animator using the Spray tool. I mapped this image on a rectangle as opacity map.