Next you need to choose what data to download. Go to OpenTopography web site, click Global Data tab. Remember global mapper online sources includes this same data.
This is very good site to download elevation data, it has nice coverage and nice user interface. If someone has scientific facts about this please share.Īt the time of writing this page the best heightmap source is Shuttle Radar Topography Mission (SRTM GL1) Global 30m found from OpenTopography site or from global mapper online sources. Someone said that this is because satellite grabs the data, but if the beam (?) hits a city building, the elevation VALUE might be 10-30m higher than actual earth surface because beam returns from buildings roof instead of ground. Most likely you need to clean and smooth out these wild elevations in cities or other populated spaces. Please note that real world heightmap data in cities often have lot of bumps and odd elevations which make no sense.
There is big difference between fictionally made terrain heightmaps and real world data, fictional may look cool but real world is the new hot thing for arma3 terrain community. ArmA 3 Terrain Heightmap Using Real World Data
