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C_Mon
A Genuine Sucker
How about that terragen planet maps tutorial, eh?
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C_Mon
A Genuine Sucker
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OK.....earth tutorial, atmosphere tutorial...terragen planets tutorial...
check.
open terragen, preferably on a fairly high CPU powered PC.
generate terrain, keep hitting the generate button until you get something where water and land are fairly equal.
use or create a land texture, like the planet you want to make. (dark green for an earth like, etc) play with these settings, no other way to do it really.
now, place the cemera in the center, and point it right down (camera angle -90)
set the zoom level of the camera to 1.000
place it VERY high, and tell it to render a 10,000 x 10,000 square. turn off atmosphere for rendering. (sky)
in the sun buttons, move it to an angle of 90*.
render preview, LOWEST QUALITY. (not the 10,000x10,000, the render preview window.
change the color of the water to whatever suits your needs, but remember, from space it will seem DARK, on earth it is almost black. render preview again, raise/lower water levels as needed.
play with material settings as needed, increasing level of detail for fine tuning. also, move the camera higher/lower until you see the black border/background around the entire plane of the land/water.
when satisfied. SAVE both the terrain and world settings BEFORE YOU RENDER THE 10,000x10,000 image!!!
render the 10,000x10,000 image at max details/anti-aliasation.
save image.
save heightmap (export as a 8xxx x 8xxx raw data map. remeber the size.
open photoshop/whatever paint program.
open the color map. and cut out along the edge, so you have JUST the terrain. you will probably wind up clipping the mountains a bit, but oh well. :) just you don't want ANY black here.
resize the image to 8152x4096
save as your planet COLOR map
now, this takes time. turn the land white, and the oceans black. this can usually be done by using the selection tool and upping it's tolerance a bit, and then using the fill bucket to turn it to all one color. but no matter what there will be some pixel by pixel editing going on... when done, save as your SPEC map.
import the raw heightmap, importing the size of it.
rescale to 8152x4096
darken ALOT. and you may preform some calculations on it using the spec map to darken the image, so the oceans are BLACK, and only the mountains have some color to them. save as bump map.
done. :)