BumpMapping makes Celestia Crash

Tips for creating and manipulating planet textures for Celestia.
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BumpMapping makes Celestia Crash

Post #1by Guest » 11.02.2003, 18:06

When I turned on Bump mapping from the .ssc file, the program goes to a white screen them crashes. any idea as to what the problem is?

Phule
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Post #2by Phule » 11.02.2003, 18:31

last post was me :oops:

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selden
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Post #3by selden » 11.02.2003, 18:58

What do you mean by "turned on Bump mapping"?
Please post the ssc entry that you used and a description of or link to the image file.

Normally you have to provide a greyscale image (not color!) as the bumpmap in one of the textures subdirectories,
add one line to the ssc file which invokes it,
and another line which provides the height scale.
An example is the bumpmap that Celestia uses for Mars:

Code: Select all

   BumpMap "marsbump1k.jpg"
   BumpHeight 2.5

"marsbump1k.jpg" is in the directory textures/medres.

More sophisticated bumpmapping can be done using dds files, but I'll leave the explanation of that to Fridger :)
Selden


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