Aha. This one had me completely baffled before. I'm still completely
baffled, but at least now I understand what I'm seeing. I'm surprised at how
well the figure of the man blends in with the wall. Very interesting effect.
If anything the image_map exhibits some pixel artifacts in the leftmost
corner. But now I'm nitpicking.
Anyway, a weird and wonderful idea. I envy you :)

Margus

Ken wrote in message <36F540AA.5540BCA5@pacbell.net>...
>
> Your not going to believe the simplicity of this. The main wall is
>nothing more than a plane at z,0.1 . I then applied a .dem converted
>to .tga as a bumpmap. I let it tile it self in all directions. I took
>the same image and produced a 256 gray scale .tga from it and applied
>it as an image map with the same scale and rotations as the bump map
>for the colors you see.  That is how I managed to get exactly 256
>shades of gray in this image. ?:)
>
>  This was looking ok but it was too uniform and you could see the
>repetition in the tiling effect. I tried to think of a way around it
>and for the first time ever it occured to me that it might just be
>possible to add turbulence to an image map and bump map. I tried it
>and guess what ? It worked. Not only did it get rid of the repeat
>tiling artifacts it also gave those really nice looking wandering
>cracks you see in the image. There is one HF object way to the right
>of the image to block the dark sky but was not really needed for the
>it to work.
>
>  The plane in the foreground was also treated the same as the vertical
>wall.
>
>
>--
>Ken Tyler
>
>mailto://tylereng@pacbell.net

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