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 ________________/  the CTX files   \
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| envmap                             |
| depth 16                           |
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| corTeX / Optimum  20 Aug. 1998     |
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Basics of environment mapping...
To be creative, I chose a torus for example...

To do envmap, its's in fact not hard:
instead of using a fixed texture for the polygons,
we determine the coordinates in the texture from the
normal vectors of the vertice of the facet. I directly
used two coordinates of the normal vectors ( in first
approximation any coordinate can be used.. look in 
certain conditions if there are any constraint...)
Eh, so, that's all about theory :)

hum, practice now...
I warn you, the program I give you is a big pooh :(
that I hacked in one hour from a preceding big pooh
1) Its not optimized at all (not even 1 line of asm )
2) its not portable ( as anything else )
3) its not maintainable (if you change any parameter,
its likely to crash )
4) There is absolutely no 3d-engine behind ( facets are drawn
in stupid order ..)


But eh, we are not going to do your work !!
Come on guys, go and write a kick-ass demo :)

Note : At least all comments and ~some~ symbol names are in
English... mmmh it seems I cant make both english and
good pograms at the same time ;)

ctx / optimum Thu Aug 20 00:16:49 CEST 1998