All, I know my question doesnt have a single line answer. But it will be great if somone provides some info or sparks for starting I have an SRTM data. I created deom using osgdem and i got a srtm_12.ive file which I visualized using osgviewer and is fine Now I want to show that How a water flow occurs in DEM or srtm_12.ive data dem contains some valleys and hills so i need to find a way in OSG to display water get accumulated on terrain valleys(no realtime rendering).
For a given altitude I need to show the coast of dem which is filled with water -- Regards, Rashad
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