On Thu, 20 Feb 2003 17:43:09 +0100, Sebastian H. wrote:

> Daniel Nilsson wrote:
>> This is the blue channel of the image with improved contrast.
>> I think it looks like concrete...
>> ...and better then the color version.
>> The cool thing is that you can choose if you want the light from the top or
>> the bottom by selecting the blue or the red channel.
>> 
>> --
>> Daniel Nilsson
>> 
>> 
>> 
> It looks great!
> But I don't get it.
> An image is flat and this surface expands in three dimensions.
> How????
> 
> Sebastian H.

It's an isosurface. The object is based on a 3d noise formula. No height 
fields involved. (I assume that's what you're puzzled about)

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