Game development - movement underwater

Abstract

How is it possible in a computer game to create a feeling that the character really moves underwater? What kind of changes in physics is character facing? What about the loss of light? How to make the sounds feel real? How is all this transferred for the person playing the game? In this thesis I will go through the kind of things you have to consider when you are creating a game character that moves underwater. I will also explain how to implement the selected most important aspects of the movement using Unity 3D game engine