In message <web.42e0ac70811cc7c35464b3b50@news.povray.org>, PM 2Ring 
<nomail@nomail.?.invalid> writes
>Alex <pov### [at] lazysodorguk> wrote:
>> In message <web.42dd997f811cc7c3ad93754b0@news.povray.org>, PM 2Ring
>> <nomail@nomail.?.invalid> writes


>> >If I understand this stuff correctly, the deBruijn construction is a regular
>> >5D Voronoi diagram, so it should be easy to implement in POV by modifying
>> >the code for the crackle pattern.
>> >
>> I'm not messing with source code. I never did suss out c.
>
>I've been programming in C for almost 25 years, but I wasn't suggesting that
>it would be a task for we lesser mortals. :) I was hoping that deBruijn's
>construction might be incorporated as a standard pattern into the official
>POV, some time in the future.
>
Can't see it myself, but if somebody can add quaternion fractals to 
Povray then I suppose anything's possible.

>> >
>> >I suppose that this is where Jaime's Lightsys comes in very useful, although
>> >I've just started exploring Lightsys myself.
>> >
>> Just had a quick look at it, looks interesting. Lighting can be very
>> tricky.
>
>I've rendered the demo files & am in the process of transforming one of
>Jaime's indoor scenes, rearranging and modifying the furniture & adding
>little things like a door handle. See below for an example.
>
Looks good. Why are you growing plants in a sports trophy?
>> >
>> >> >Here's a Penrose tiling, using rounded pentagonal prisms, in 
>> >> >standard stone
>> >> >textures. The tiles were placed by simple #while loops, not recursive
>> >> >macros.
>> >> >
>> >> Similar to a "pentaflake" fractal, but with some pentagons filling the
>> >> larger gaps.
>> >
>> >Yes. I few years back, I wrote a little C program for my Amiga to play with
>> >pentagonal tilings by hand. I spent many, many hours exploring these
>> >tilings.
>> >
>> I never knew about these tilings until relatively recently, although I
>> have programmed similar L-system fractal algorithms on my old CPC464.
>> --
>
>Ah! The old Amstrad. Such a pleasant machine to program.
>
It was a great machine, as was the ZX81. I just wish the IBM PC had been 
based on the Z80 processor as well :)
-- 
Alex

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