tutorials

http://freespacefilms.net/tutorials/smartterrain/

displacement maps


Shark-http://www.3dm3.com/tutorials/shark/
 fish- https://www.youtube.com/watch?v=WEk-gNorxZQ
         https://www.youtube.com/watch?v=k6uBZwsSNKo
         https://www.youtube.com/watch?v=iyJfieJkKOI
         https://www.youtube.com/watch?v=sQClIUsBSco