We're going to create the Live-Earth from 2 images - The earth itself and the clouds:
Download the sample earth here from wikipedia:
http://de.wikipedia.org/w/index.php?title=Datei:Whole_world_-_land_and_oceans.jpg&filetimestamp=20050522223323
If you're on linux use a terminal console and use this script to generate a real day/night brightness on the earth:
http://ubuntued.info/wp-content/uploads/2008/12/changer.sh
Second, please download these real clouds image that is snapped by a sattelite from space every 3 hours:
http://xplanet.sourceforge.net/clouds.php
Create a live 3D-Earth with live clouds!
Our user Nooster wrote a cool tutorial on his blog. He shows uns how to generate a realistic 3D globe with clouds that have been snapped by a sattelite live from space! Enjoy
This article has been written using GIMP 2.6.
It's divided into 12 steps and takes about
10 min to complete for an average user. 5470 times read so far.
Category: Photos / wallpapers, required skill:
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2
Open the image of the earth with GIMP and scale it to the size of your cloud-picture, for example 2048×1024 or 4096×2048) pixel. Click Image → Scale Image.
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3
Use drag&drop to get the clouds image into your earth image. Then overlap the image with the clouds with the image of the earth.
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4
Change the layers mode of this layer to „screen“.
Click to enlarge -
5
Combine the two layers into one: Right click in the layers dialogue on the clouds layer - select „merge down“
Click to enlarge -
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Filter → Map → MapObject…
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Pick "Ball" and "No background".
I disabled the light, but you can try it, let the sun shine ;-)
Click to enlarge -
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I took the following for earth rotation: x=0,0; y=5,1;z=15,4
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After clicking OK the image is generated within seconds. Don’t forget to rescale the new image! Use the same size for width and height.
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Image → Autocrop deletes the transparent border
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optional: To generate a spacy picture you need stars! So create a new layer, color it black and click on Filter → noise → HSV-noise ;-)
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Voilà: The realtime globe is ready! :-)
Click to enlarge
This article is licensed under the following license: Attribution-Noncommercial 3.0 Austria
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