Scaling it up is no problem. Simply change the following lines in the demo...
CreateWater Function
ScaleTexture BumpTexture,0.00005,0.00005
and
ScaleMesh WaterPlane,512,1,512
The only thing that really needs to be changed after you have altered the scale of the waterplane is the bumptexture which changes the size of the ripples.
CreateWater Function
ScaleTexture BumpTexture,0.00005,0.00005
and
ScaleMesh WaterPlane,512,1,512
The only thing that really needs to be changed after you have altered the scale of the waterplane is the bumptexture which changes the size of the ripples.