- Fractdev - mailman.xmission.com

Patches for QA issues for compiling xfractint on Gentoo linux
by David Denoncin 03 Aug '20

03 Aug '20

Jonathan, Here are 3 patches that we can apply on Gentoo linux in order to either compile with our musl profile[1] or comply with Gentoo QA. Two of these issues were discovered after your patch 15 and are not related to the previous issue with gcc-10. It seems that the patch about ldflags was around since patch 09. I'm sorry for not telling about this one at the time. Please let me know if you intend to do something about these. Otherwise we'll package it as is (https://github.com/gentoo/gentoo/pull/16675) Thanks, David. [1] http://musl.libc.org/

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Building xfractint fails with -fno-common or gcc 10
by David Denoncin 12 Jul '20

12 Jul '20

Dear xfractint developers, I'm a gentoo linux user and it has been noticed that xfractint does not compile with -fno-common or gcc-10 (https://bugs.gentoo.org/706522) I'm not a C programmer, but I've managed to get the software to compile by applying the three attached patches. Please let me know if you intend to modify your source code so that I know what to do with the corresponding gentoo package. Best regards, David Denoncin.

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Upgrades for Fractint
by Paul 09 Jul '20

09 Jul '20

Dear Friends of Fractint, I have been thinking a lot about possible upgrades to Fractint. It is a remarkable piece of software. However, there are many issues as I try to port much of the code to my program ManpWIN. The main issue is the use of global variables for everything. I recognise the need for them in the purely DOS days to get every bit of speed possible. I want to upgrade the code to allow multi-threading. In order to do this there can't be any global variables as one thread will overwrite the value of another. C++ helps by allowing variables to be global for each object but not for others. So an object can be used for each thread. Other possible improvements. 1. I have replaced the bignum library with MPFR because it is thread safe and is quicker than Fractint's bignum library. 2. I have created a complex number bignum library that simplifies many of the complex number routines 3. I have ported all the plotting routines to C++ and added a couple of my own 4. Incorporate perturbation theory for faster bignum calculations at high zoom levels. This works very well and is mult-threaded 5. Offer slope clculations to show a 3D effect. This is also multi-threaded However, I am still stuck on the main Fractint portions of my code because of all the remaining global variables. I would dearly love to make it multi-threading, especially when we zoom deep into arbitrary precision. Is anyone interested in looking at these issues? I am happy to share some of my source code if anyone wants it. Thanks, Paul. ---------------------------------------------------------- Paul de Leeuw Computers NSW Central Coast, Australia Email: pdeleeuw(a)deleeuw.com.au www: <https://www.deleeuw.com.au> ABN 72 360 822 562 ----------------------------------------------------------

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Oops, Warning messages
by Paul 09 Jul '20

09 Jul '20

Oops, sorry friends, I think I vilolated some protocol by adding an image signature to my emails. Sorry if my messages didn't get to you or if I caused any other issues. Regards, Paul. ---------------------------------------------------------- Paul de Leeuw Computers NSW Central Coast, Australia Email: pdeleeuw(a)deleeuw.com.au www: <https://www.deleeuw.com.au> ABN 72 360 822 562 ----------------------------------------------------------

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Re: [Fractdev] STOP
by Harold Lane 08 Jul '20

08 Jul '20

Your message is so cryptic, it fails to communicate what you wish stopped -- and the reasoning behind stopping it. Fyi, my email was a follow-up email with information identifying some errors remaining in Richard's Fractint code base -- and some workarounds. I further characterized Richard's code base as being successful enough to calculate thousands of images using Jim Muth's FOTD PARS and FRMs. - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Fractdev <fractdev-bounces(a)mailman.xmission.com> On Behalf Of Mr Timothy Butler Sent: Tuesday, July 7, 2020 7:29 PM To: Fractint developer's list <fractdev(a)mailman.xmission.com> Subject: Re: [Fractdev] Examples of issues & work-arounds discovered in Richard's Iterated Dynamics / Fractint for Windows beta 5 STOP -----Original Message----- From: Fractdev <fractdev-bounces+timothy.butler=uqconnect.edu.au(a)mailman.xmission.com> On Behalf Of Harold Lane Sent: Wednesday, 8 July 2020 7:17 AM To: 'Fractint developer's list' <fractdev(a)mailman.xmission.com> Subject: [Fractdev] Examples of issues & work-arounds discovered in Richard's Iterated Dynamics / Fractint for Windows beta 5 Paul, Tim, As examples of issues that I've discovered which remain in Richard's Iterated Dynamics / Fractint for Windows beta 5 -- some of which I was able to come up with work-arounds for -- see my email to Jim Muth below: I renamed my work-around for the "frm:MandelbrotBC3" problem: "frm:MandelbrotBC9". Any PAR file using my work-around will also need to refer to "frm:MandelbrotBC9". I created and posted thousands of images with Richard's program on my site and posted them to the Fractint list. See the URL to my site below. It's not an HTTPS server. The unfortunate domain name is left over from long, long ago. - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Harold Lane <hallane(a)earthlink.net> Sent: Thursday, February 25, 2016 3:45 PM To: 'Fractint and General Fractals Discussion' <fractint(a)mailman.xmission.com>; Muth, Jim (jimmuth(a)earthlink.net) <jimmuth(a)earthlink.net>; Richard_Fractint4win (legalize(a)xmission.com) <legalize(a)xmission.com> Subject: RE: [Fractint] I'm working on resuming the FOT???? Jim, Be aware that rotating the zoom box of Richard's Fractint for Windows beta 5 (now renamed Iterated Dynamics -- and still not released for general use) distorts the zoom box contents by a factor of 4:3 and a function of the angle rotated. The zoom box can, however, easily be rotated 90 degrees and show a correct aspect ratio image -- if you follow the 90 degree rotation with manually shrinking the X direction by a factor of 0.75. Note that Richard adjusted the initial default M-set to show its correct aspect ratio. To see the aspect ratio problem caused by rotation: - let the program calculate the default M-set; - zoom in to get a zoom box ~80% of the full window size; - rotate that zoombox ~45 degrees, and - hit Enter to see the non-1:1 aspect ratio result -- the circular M-set bud is no longer circular. I also recall someone saying that they had trouble with the (V)iew command. In place of View, I simply use a different pixel size window/resolution. There's also a bug that is brought to life when using the formula: formulaname=MandelbrotBC3 (also perhaps in other cases) but I discovered what triggers it and created a work-around that works -- if the function "ident" is passed to the formula... I put my work-around, (and a slight speedup) & the assumptions it makes below. I haven't used all that great a variety of Fractint's capabilities in Richard's version, so I suspect that there are a few further anomalies hidden in it -- it is a "beta" release, after all. However, despite all of the above, essentially all of my thousands of images that are variations on your FoTD images -- posted on my web site: http://www.emarketingiseasy.com/TESTS/FOTD/jim_muths_fotd.html were calculated by Richard's version of Fractint. I took great pains to verify that of Richard's Fractint for Windows beta 5 images exactly matched yours before I proceeded with creating my variations. ================================= Hal Lane's MandelbrotBC3 work around: ================================= frm:MandelbrotBC9 { ; by several Fractint users ; ; fn1() removed. This code assumes that the PAR file uses: ; ; function=ident ; ; 2*PI and flip(p) speedups added ; ; -Hal Lane ; twopi=2*PI flip2pi=flip(twopi) e=p1 a=imag(p2)+100 p=real(p2)+PI flipp=flip(p) r=real(p2)+PI-p Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip2pi ENDIF Z=exp(e*(Z+flipp))+C |Z|<a } ========================= - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Fractint [mailto:fractint-bounces@mailman.xmission.com] On Behalf Of Richard Sent: Thursday, February 25, 2016 1:31 PM To: FractInt Discussion <fractint(a)mailman.xmission.com> Subject: Re: [Fractint] I'm working on resuming the FOT???? In article <14665852.1456422756401.JavaMail.root(a)mswamui-backed.atl.sa.earthlink.net>, Jim Muth <jimmuth(a)earthlink.net> writes: > version of Fractint. Is there a version of Fractint that will run > under XP and operate similar to the DOS version? <https://github.com/LegalizeAdulthood/iterated-dynamics/releases/tag/fractin t-21-00-beta-5> -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://ComputerGraphicsMuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com> _______________________________________________ Fractint mailing list Fractint(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint _______________________________________________ Fractdev mailing list Fractdev(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/fractdev _______________________________________________ Fractdev mailing list Fractdev(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/fractdev

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Examples of issues & work-arounds discovered in Richard's Iterated Dynamics / Fractint for Windows beta 5
by Harold Lane 07 Jul '20

07 Jul '20

Paul, Tim, As examples of issues that I've discovered which remain in Richard's Iterated Dynamics / Fractint for Windows beta 5 -- some of which I was able to come up with work-arounds for -- see my email to Jim Muth below: I renamed my work-around for the "frm:MandelbrotBC3" problem: "frm:MandelbrotBC9". Any PAR file using my work-around will also need to refer to "frm:MandelbrotBC9". I created and posted thousands of images with Richard's program on my site and posted them to the Fractint list. See the URL to my site below. It's not an HTTPS server. The unfortunate domain name is left over from long, long ago. - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Harold Lane <hallane(a)earthlink.net> Sent: Thursday, February 25, 2016 3:45 PM To: 'Fractint and General Fractals Discussion' <fractint(a)mailman.xmission.com>; Muth, Jim (jimmuth(a)earthlink.net) <jimmuth(a)earthlink.net>; Richard_Fractint4win (legalize(a)xmission.com) <legalize(a)xmission.com> Subject: RE: [Fractint] I'm working on resuming the FOT???? Jim, Be aware that rotating the zoom box of Richard's Fractint for Windows beta 5 (now renamed Iterated Dynamics -- and still not released for general use) distorts the zoom box contents by a factor of 4:3 and a function of the angle rotated. The zoom box can, however, easily be rotated 90 degrees and show a correct aspect ratio image -- if you follow the 90 degree rotation with manually shrinking the X direction by a factor of 0.75. Note that Richard adjusted the initial default M-set to show its correct aspect ratio. To see the aspect ratio problem caused by rotation: - let the program calculate the default M-set; - zoom in to get a zoom box ~80% of the full window size; - rotate that zoombox ~45 degrees, and - hit Enter to see the non-1:1 aspect ratio result -- the circular M-set bud is no longer circular. I also recall someone saying that they had trouble with the (V)iew command. In place of View, I simply use a different pixel size window/resolution. There's also a bug that is brought to life when using the formula: formulaname=MandelbrotBC3 (also perhaps in other cases) but I discovered what triggers it and created a work-around that works -- if the function "ident" is passed to the formula... I put my work-around, (and a slight speedup) & the assumptions it makes below. I haven't used all that great a variety of Fractint's capabilities in Richard's version, so I suspect that there are a few further anomalies hidden in it -- it is a "beta" release, after all. However, despite all of the above, essentially all of my thousands of images that are variations on your FoTD images -- posted on my web site: http://www.emarketingiseasy.com/TESTS/FOTD/jim_muths_fotd.html were calculated by Richard's version of Fractint. I took great pains to verify that of Richard's Fractint for Windows beta 5 images exactly matched yours before I proceeded with creating my variations. ================================= Hal Lane's MandelbrotBC3 work around: ================================= frm:MandelbrotBC9 { ; by several Fractint users ; ; fn1() removed. This code assumes that the PAR file uses: ; ; function=ident ; ; 2*PI and flip(p) speedups added ; ; -Hal Lane ; twopi=2*PI flip2pi=flip(twopi) e=p1 a=imag(p2)+100 p=real(p2)+PI flipp=flip(p) r=real(p2)+PI-p Z=C=Pixel: Z=log(Z) IF(imag(Z)>r) Z=Z+flip2pi ENDIF Z=exp(e*(Z+flipp))+C |Z|<a } ========================= - Hal Lane ######################## # hallane(a)earthlink.net ######################## -----Original Message----- From: Fractint [mailto:fractint-bounces@mailman.xmission.com] On Behalf Of Richard Sent: Thursday, February 25, 2016 1:31 PM To: FractInt Discussion <fractint(a)mailman.xmission.com> Subject: Re: [Fractint] I'm working on resuming the FOT???? In article <14665852.1456422756401.JavaMail.root(a)mswamui-backed.atl.sa.earthlink.net>, Jim Muth <jimmuth(a)earthlink.net> writes: > version of Fractint. Is there a version of Fractint that will run > under XP and operate similar to the DOS version? <https://github.com/LegalizeAdulthood/iterated-dynamics/releases/tag/fractin t-21-00-beta-5> -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://ComputerGraphicsMuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://LegalizeAdulthood.wordpress.com> _______________________________________________ Fractint mailing list Fractint(a)mailman.xmission.com https://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint

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Re: [Fractdev] [Fractint] Update to SDL version
by Jonathan Osuch 23 Oct '17

23 Oct '17

David, > > > > > > > > > What would be the correct aspect ratio for 1920x1080? 0.56? > > Define correct. Do we want square pixels? > Yes. Like they look on my other Linux graphics apps and such. I'll have a look at it. > > > > I see that the <DEL> screen isn't finding the current video > > > > mode > > like > > it should. I'll have to back out changes to see what happened. > Well, I just tried it from my new-default 1920x1080 screen. Del > found > the list of video modes. I picked SF6 (800x600) and got an 800x600 > fractal in the lower left corner of my 1920x1080 window. It seemed > to > find all the modes. I would assume that your 1920x1080 is actually full screen. A full screen video mode will not behave as expected (like DOS Fractint) when a new video size is selected using <DEL>. I had tried to implement it, but was having trouble determining the causes of the problems we were (and still are) having with the different video modes, so I took it out. Once switching normal window sizes works, I will work on getting <DEL> to work when the image is full screen. OTOH, we could have the <DEL> selection reduce the window size to be not full screen. Any preferences? Jonathan

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Re: [Fractdev] [Fractint] Fractint under FREEDOS from USB drive
by Timothy Wegner 18 Jan '15

18 Jan '15

Occurs to me that this thread is more appropriate for the fractdev mailing list than fractint, so I will crosspost this to fractdev, then follow up there. I'm not saying that there shouldn't be ANY discussion of booting fractint from USB here, but if we get into lengthy discussions of arcane hardware issues (which I certainly enjoy), we may be getting a little off topic for this list. We'll see how it goes. Anyone interested in sharing technical information about running fractint on various platforms please join me in Fractdev. When I have something to share with end users, I will report here. Please understand I am not trying to shush anyone up, so if you'd like to see this discussion here, by all means say so. Paul wrote: > I have found that it depends on the level of USB that you have installed > on the computer, as well as the pluggin drive itself. Some thumb drives > work on some of my older machines, and some do not. > The puzzle is that I have three self-built machines of different ages that all have Gigabyte motherboards, AMD chips, and Award bioses. The oldest and youngest boot USB and CF, but the middle machine does not. The point is that these are not dissimilar, just different ages. Doesn't worry me that one doesn't work, I guess I am just compulsive. I'll compare the bios settings, and see if there's some setting causing different behavior. I really want to try the middle machine because it is the only one with NVIDIA (non-motherboard) graphics, which some folks have suggested might have better VESA support. I do have a plan B. I found a 2.5 inch 80gb SATA drive in my junk drawer that came out of a Dell E1505 Laptop when I upgraded the drive. I'll blow away the XP on it and format with FreeDOS. That should certainly work in a dual boot configuration on the middle machine. Followups to fractdev please. Tim

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Re: [Fractdev] Fractdev Digest, Vol 63, Issue 3
by marcusadriana＠mls.com.br 07 Mar '14

07 Mar '14

Sirs, a little of history: Fractint was my first contact with fractal s something around the middle of the ´80s. Since then year even, year odd with my old Basic I tried to follow and reproduce the images i saw, just as a quest, but till today i envy but cannot reproduce Lyapunov among others. Winfract was for me a new horizon although did not have the 'stretch' possibility that make things take a perspective look-like view among other shortcomings. My possible limited contributions to Fractint in fractal ideas, in the far past, were barred by my ignorance of C and C++, as I once tried one or two times. The ideas were infantile, so i discontinued to try and enjoyed my own different mandels, ifs, L´s fractals. Nowadays ( I quit using Fractint as soon as Winfract were available for the first time, although making use of the ifs, par, L, frm, map, Fractint´s archives),Winfract also begun to suffers from our new ´64 platforms. ManpWIN then was a salvation for I consider it cumbersome the use of #DOS& compilers. As the matter of fact, it´s not much, but I have for the last few months made suggestions to Fractint was my first contact with fractal s something around the middle of the ´80s. Since then year even, year odd with my old Basic I tried to follow and reproduce the images i saw, just as a quest, but till today i envy but cannot reproduce Lyapunov among others. Winfract was for me a new horizon although did not have the 'stretch' possibility that make things take a perspective look-like view among other shortcomings. My possible limited contributions to Fractint in fractal ideas, in the far past, were barred by my ignorance of C and C++, as I once tried one or two times. The ideas were infantile, so i discontinued to try and enjoyed my own different mandels, ifs, L´s fractals. Nowadays ( I quit using Fractint as soon as Winfract were available for the first time, although making use of the ifs, par, L, frm, map, Fractint´s archives),Winfract also begun to suffers from our new ´64 platforms. ManpWIN then was a salvation for I consider it cumbersome the use of #DOS& compilers. As the matter of fact, it´s not much, but I have for the last few months made suggestions to Paul de Leeuw for his ManpWIN and, surprise, he accepted my Basic codes and some long and new refrained ideas !!! Hope this email and Paul´s information of a refreshed ManpWIN can stir the pure fractal universe that now seems devoted to magnificent palaces, amazing horizons, imaginary planets, traveling lights, that i consider very nice and amazing but as a product of art associated with laborious machine time and far from the pure fractal´s ideals like Fractint had induced us in the past. Citando fractdev-request(a)mailman.xmission.com: > Send Fractdev mailing list submissions to > fractdev(a)mailman.xmission.com > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractdev > or, via email, send a message with subject or body 'help' to > fractdev-request(a)mailman.xmission.com > > You can reach the person managing the list at > fractdev-owner(a)mailman.xmission.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Fractdev digest..." > > > Today's Topics: > > 1. Re: Sorry, but Fractint is not slowing, but rapidly dying > (Timothy Wegner) > 2. Re: Sorry, but Fractint is not slowing, but rapidly dying > (Paul N. Lee) > 3. Re: [Fractint] Fractint under FREEDOS from USB drive (Paul N. Lee) > 4. Re: Sorry, but Fractint is not slowing, but rapidly dying > (Nicholas Wilt) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 7 Mar 2014 14:06:33 -0600 > From: Timothy Wegner <tim(a)tswegner.net> > To: "Fractint developer's list" <fractdev(a)mailman.xmission.com> > Subject: Re: [Fractdev] Sorry, but Fractint is not slowing, but > rapidly dying > Message-ID: > <CAFLr274tCA4rKt-ZTMixfj1CCL0wht0ni00Aqck67qgz6VFkPg(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > I am delighted to hear from Paul de Leeuw, and am equally delighted, Paul, > to hear you are still working on your fractal program. > > Marcus's comments had me laughing out loud. I have no idea what if > anything I will further contribute to Fractint. But, Marcus, I am amazed > you know my plans! No need to feel any sorrow about one of the oldest and > longest-maintained open source projects, which by rights, was obsolete a > decade ago. Mystery of mysteries, it's life continues on. The folks who > post in the Fractint list amaze me. I, for one, certainly would not rule > out more development, but neither am I promising it. FreeDOS is a case in > point, as nearly a decade went by between versions 1.0 and 1.1. Interesting > how some very talented folks apparently nostalgic for their DOS > applications have extended the lives of old software with DOSBox. > > At the moment I am indeed working on my old computing platforms, a > necessity if I wish to run Fractint or recompile it.. As I reported > earlier, I can run FreeDos/Fractint from a USB drive on two of my three > computers. Today I wrestled hard with the middle computer. My problems were > worse than not being able to boot from the USB drive, Fractint's video > modes crashed under FreeDOS on that machine. No such behavior on the other > two computers (both the older and newer one.) I did get far enough to learn > that the (cheap, but fairly new) Nvidia board did NOT have better VESA > support than the ATI graphics on the other two. My scientific curiosity is > nearly (but not quite) exhausted with the trials and tribulations of the > middle machine, so I will just use the other two. These are home built > machines with removable drives, so I have a lot of flexibility. > > Tim >

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Anyone run DOS Fractint in CMD window in WinXP mode of Win7 Prof. 32-bit?
by Hal Lane 14 Jan '14

14 Jan '14

Has anyone tried to run DOS Fractint in the CMD window in the WinXP mode of Windows 7 Professional 32-bit or 64-bit -- and if so -- which one? I hoping to gracefully retire my WinXP before Microsoft ends support in April 2014... - Hal Lane ######################## # hallane(a)earthlink.net ######################## --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com

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