> > Huh?
> >
> > If the sphere is constructed as a mesh, meshes are hollow, and thus
> > mountains in the univerted image will become mountains on
> > the sphere interior.
> >
> > Dan
> >
> > --
> > http://www.flash.net/~djconnel/
> 
> Ha !
> 
>   I said "If you invert the HF IMAGE that Leveller uses for height
> elevation points...".
> 
>   What needs to be done for this to work is to invert the HF elevation
> data in the HF image itself. I suppose it's possible - just need to
> rethink the way one makes positive elevation HF's in the first place.
> 
> --
> Ken Tyler
> 
> tyl### [at] pacbellnet
Ken, you are thinking yourself in circles.  Think about it this way.  If
you take white text on a black background and map it around a sphere,
you get text protruding from the outside of the sphere.  If you take
text in black and background white, you get text protruding INTO the
sphere.  Now, granted, the scaling isn't exactly right (you have a
sphere of radius R+1 and the text is at radius R, but it is still
projected on the interior.  That means that the mountains would then be
on the inside.  All I would do to my program would be to subtract the
height value from the sphere's radius instead of add it.  It ends up
being very close to the same.  Now I don't know if you are making a
Dyson's sphere (which I doubt since you dislike making space scenes), or
if you are making a Geode, or what but I doubt that you will have too
much difficulty due to the slight innaccuracy of the inverted image.

Steve

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