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- 5th October 1993
-
- Eorbit1.zip, is a 360 frame fli of the earth rotating at 23.5 degrees to
- the ecliptic seen from an elliptical orbit that varies between 20,000 miles
- and 40,000 miles.
-
- The earth's surface features are accurately modelled to 0.5 degree
- resolution using a 720x360 height field for slight bump mapping and another
- image for colour coded altitude contours. The sea varies from light blue
- to dark blue to black, and the land varies from green to brown to grey to
- white. The Atlantic ridge is clearly visible as are the Himalayas and lots
- of other features.
-
- The sun pops in every now and then featuring some camera flare, (an image map)
- and the moon is just visible in a couple of frames, (but you have to look hard
- for it as it moves against the background of stars!
-
- For the anoraks...
- Created by Andy Haveland-Robinson using Qbasic and the registered version of
- Vivid2, plus height field data obtainable from ftp.informatik.uni-oldenburg.de
- [134.106.1.9] in /pub/dkbtrace/pics/earth.lzh
- The image data was modified to sort and change palette mapping, then
- converted to 24 bit targas for image mapping.
-
- Thanks go to Frank.Neumann@arbi.informatik.uni-oldenburg.de for making the
- raw images from the floating point data at hanauma.stanford.edu,
- Eric Haines of Raytracing News, and to Ken Chin-Purcell for writing the
- article publicising its availibility.
-
- Enjoy...
- Andy.
-
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