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DarkBASIC Professional Discussion / Spherical projection map divided into small squares.

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pdq
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Posted: 30th Oct 2010 15:56
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I have a high resolution spherical map texture that has been divided into smaller square maps. What is the best way to map this onto a sphere?

Thanks,
pdq
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pdq
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Posted: 2nd Nov 2010 23:07
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Any ideas?
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baxslash
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Posted: 2nd Nov 2010 23:15
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Why not just texture the sphere with the spherical map?

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pdq
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Posted: 2nd Nov 2010 23:33
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I know I'm not being specific. I apologize. Here is the situation. I downloaded hires 1024x1024 color maps of mars. There are 64 of these maps. When pieced together make a complete spherical map, but as you can imagine the map would be ridiculously enormous.
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Diggsey
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Posted: 3rd Nov 2010 13:56
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Make them smaller?

[b]
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baxslash
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Posted: 3rd Nov 2010 14:01
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Quote: "Make them smaller?"

...or have different resolution/sized images you can texture the object with as you get closer to it?

Another option is to manually make your sphere and texture it face by face in your 3D editor.

How is the sphere going to be viewed? Is it a space game, a flight sim? It might help narrow down the best solution...

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Sven B
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Posted: 3rd Nov 2010 23:50
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Quote: "I know I'm not being specific. I apologize. Here is the situation. I downloaded hires 1024x1024 color maps of mars. There are 64 of these maps. When pieced together make a complete spherical map, but as you can imagine the map would be ridiculously enormous."


Do you need this much detail? 64*1024*1024 is a lot of memory that will be consumed just by some background skysphere... It might be easier to combine several images into one 1024*1024 image (like 6 1024*1024 images) and you might not even notice much difference in quality.

Sven B

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