Jim Charter wrote:
> David Buck wrote:
>> Another point in the FLOSS Weekly interview was that I don't consider 
>> myself an artist.  The pictures I designed where usually to test 
>> particular features.  Any attempts at an artistic image were somewhat 
>> lame.
>>
>> Here are two more pictures I designed from DKBTrace.  The first one 
>> was specifically to test a new feature where shadows through a partly 
>> transparent object show up correctly on the floor.  Prior to this 
>> feature, a transparent object still had a solid shadow.
>>
>> The next picture is one that I think I designed (I don't entirely 
>> remember).  It does show the kind of image I tended to come up with on 
>> my own.
>>
>>
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>>
>>
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>>
> So procedural patterns were a part of the earliest implementation?

DKBTrace did use procedural patterns based on a paper in the SIGGRAPH 85 
conference proceedings by Ken Perlin called "An Image Synthesizer". 
This was in DKBTrace 1.0 when I first released is as I recall.

We later replaced the noise function with one from Robert Skinner 
because it gave better results than Perlin's.

David Buck

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