[Opensim-dev] water level

[Diva Canto]

Hi opensim-devs,

Water level being a constant of the estate (region?): is this imposed by 
the viewer?
This is limiting; can't model creeks properly. See here:
http://tagide.com/misc/Snapshot_003.JPG
Notice that discontinuity in the creek when it crosses the region, and 
the general widening of the creek as the terrain gently lowers.

I would like to be able to spec water level as a function of x, y, sort 
of like a terrain -- just another "layer" in GIS terminology. What would 
that entail? (Searching in the opensim wiki I found a wish for it to 
also be a function of time; I would like too :-)

For now, and coming back to reality, is there a way to spec water level 
externally, say in the XML of the region?

Thanks!
Crista