May 2018 - Fractint - mailman.xmission.com

Stephen Hawking
by Bill Jemison 24 Aug '19

24 Aug '19

The recent passing of Stephen Hawking has filled me with a great sense of loss. He was an unbelievable inspiration and explorer of the universes - both inward and outward. This audio fractal, which I first created in 1999, is dedicated to him. "Requiem" <https://sites.google.com/site/audiofractals/mp3-files/requiem-1999> Headphones or high quality speakers are recommended. Enjoy! Bill Jemison Audio Fractals <https://sites.google.com/site/audiofractals/home>

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Re: [Fractint] Status of SDL XFractint?
by Jonathan Osuch 20 May '18

20 May '18

David, > Sounds like a busy weekend! ;) Getting the mandelbrot assembly code working under windows was less painful that I was anticipating. The already existing 32-bit code worked with a few tweaks related to changing variable sizes and the fix for popping information off the stack. There is still a problem (with both 32-bit and 64-bit versions) relating to how the code that displays orbits is handling keystrokes. No crash, it just takes forever for the text screen to show up. Jonathan

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Re: [Fractint] Status of SDL XFractint?
by Jonathan Osuch 17 May '18

17 May '18

Folks, > I believe it is the assembly to C interface, that I haven't yet > mastered. The crash always happens in (or after) one of the > functions > that gets keystrokes. The return address isn't correct? Hmmm. Close. There was a return that wasn't popping data off the stack. I have the mandelbrot assembly code working now under 64-bit Linux. I might try to get it to work under Windows this weekend. Jonathan

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Re: [Fractint] Status of SDL XFractint?
by Jonathan Osuch 13 May '18

13 May '18

David, > Something not being initialized properly before it starts processing > the > formula? I believe it is the assembly to C interface, that I haven't yet mastered. The crash always happens in (or after) one of the functions that gets keystrokes. The return address isn't correct? Hmmm. Jonathan

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Re: [Fractint] Status of SDL XFractint?
by Jonathan Osuch 12 May '18

12 May '18

David, > Just wondering. Haven't seen anything since 12/26/2017. Still alive > and > progressing? Yes, but slowly. Still working with the Linux version (64-bit). I have the fast mandelbrot code working, but if you have it as the default fractal when you start Fractint, it crashes. It will also crash with key strokes (but not consistently). I have also been working on the fast formula parser, but it currently crashes before an image gets generated. There are several problems that I don't yet have a handle on. The syntax between MASM (old) and NASM (new) is different enough (and similar enough to be confusing) that it isn't always obvious how to change the code. NASM doesn't always seem to function as I would expect. The interface between the 64-bit C code and the 64-bit assembly is not defined as well as it could be in the NASM documentation. Once I get all that straightened out, the Windows code (32-bit) will be a whole new learning experience. Some due to idiosyncrasies mandated by MS. Others due to different variable sizes and pointer sizes. Jonathan

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Status of SDL XFractint?
by david 09 May '18

09 May '18

Just wondering. Haven't seen anything since 12/26/2017. Still alive and progressing? Thanks. -- David W. Jones gnome(a)hawaii.rr.com authenticity, honesty, community http://dancingtreefrog.com

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"Peace and Love" - audio fractal w/par
by Bill Jemison 04 May '18

04 May '18

The last audio fractal I uploaded, "Chaos City" <https://sites.google.com/site/audiofractals/mp3-files/chaos-city> , was a really chaotic tour of a chaotic town. No filters between raw chaos and your ears. All sorts of semi tones and other strange notes blended together creating what I think is a fairly good aural representation of a fractal calculation. Not necessarily pleasing, in a musical sense, but then, not all visual representations of a fractal calculation are considered pleasing, in an artistic sense. Many, regardless of musical or artistic merit, are interesting nonetheless. I think that appreciation of both is often an acquired taste. Today's audio fractal, "Peace and Love" <https://sites.google.com/site/audiofractals/mp3-files/peace-and-love-2018> , is a step in a quieter, more restrained direction. Fractint has several parameters with which the audio output can be modulated. I like to think of them as the audio equivalent of color controls like map files, etc. For "Peace and Love" <https://sites.google.com/site/audiofractals/mp3-files/peace-and-love-2018> I chose to use a mapping of the tones which allowed only "C"(1), "E"(5) and "G"(8) notes of the C Major scale to be played. I included two "pause"s in order to add a bit of rhythmic variation and let chaos do its work within the boundarys established. For the mp3 version of "Peace and Love" <https://sites.google.com/site/audiofractals/mp3-files/peace-and-love-2018> I used the sounds produced by parameter "x" for one channel and those produced by parameter "y" for the other channel. In addition, I changed the sound parameters for attack decay and sustain to produce a more crisp tone from the "y" channel. If you run the included par file (at 1024x768x256 res please), especially if you can enable some effects, like Concert Hall, etc., you will get an absolutely relaxing monaural version, which, in some ways I still prefer to the uploaded .mp3 file. I know "Peace and Love" <https://sites.google.com/site/audiofractals/mp3-files/peace-and-love-2018> is a pretty corny title, but I do find that meditating on both while relaxing to the soothing sounds is hypnotically effective. Bill Jemison Audio Fractals <https://sites.google.com/site/audiofractals/home> *******************start par************ L&P_x {;Bill Jemison 2018 ; Please use 1024x768x256 mode ;if possible use reverb or audio effects (auditorium, etc) reset=2004 type=tetrate passes=1 center-mag=0.0460905/1.07143/2.380952 params=0/0 float=y maxiter=25 inside=0 viewwindows=4.2/0.75/yes/0/0 hertz=-396 polyphony=9 attack=9 decay=8 sustain=8 scalemap=1/8/5/8/pause/1/5/1/8/1/pause/5 sound=x/fm/quant orbitdelay=3000 showorbit=yes colors=(a)default.map } **********************end par************

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