The waterfield is the parameter that specifies the construction of a body of water.
altitude: the only important parameter. It can be adjusted.
The following parameters should not be modified. They do not allow any reliable control over the simulation:
For more information on creating a waterfield, please see tutorial included in Heightfield and Heightmaps. The process for creating the waterfield is the same as for a heightfield (creation of map in BW mode, texture assignment, folder grouping).