land scan data

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rouncer 103 May 21, 2012 at 07:38

Im just about to make a terrain, and i got the idea i could stream it all uniquely and detailed, so that means i just have one giant unique height map + colours, if there was information on the net of a land scan (colours+heights) i could just wham it all in straight away… is there any resources on the net such as this?

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Stainless 151 May 21, 2012 at 08:21

Search for DEM I think it is, Digital Elevation Maps

There are areas of the world that are radar scanned down to very high resolutions.

Combining that with a satellite picture should be easy

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TheNut 179 May 21, 2012 at 10:45

NASA will most likely have what you’re looking for and for free (although it’s a pain to find and download). I’ve downloaded maps for Mars (500KM / pixel) and the moon (60m / pixel) from their MOLA and LOLA projects (they use radar instead of optical analysis). You will have to use optical satellite data in order to produce colour however. I don’t think I’ve ever seen that data freely distributed.

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Tottel 101 May 21, 2012 at 18:00

Look up “Blue Marble” from NASA, it’s relatively high-res imagery of the entire planet earth.

www.outerra.com -> This engine is using that data to render the entire planet, refined with fractal algorithms.