FW: Question on Fractint Image Resolution
----------- Daniele Corradetti said ----------------------
...I would need some fractals in higher resolution (more then 2048x2048). ... Is there any way to avoid this limit?
Daniele, Tim, Rich Thompson's 'Fractint for Windows' and the current DOS Fractint version can both overcome the limit of 2048 pixels by using a configuration file to allow the creation process of fractals to use disk files and or RAM instead of the screen. (This statement is technically a bit too simple -- but let's keep it simple.) The configuration file is named: FRACTINT.CFG and is located in the directory (folder) where 'Fractint for Windows' or Fractint for DOS is installed. Fractint's configuration file data layout is pretty understandable -- just duplicate one of the existing Disk Video entries and change the "x" and "y" values -- and remove any duplicate key bindings. This works in both versions. I recommend that you don't modify any of the existing specifications in the file -- just add any resolutions you need. If you do make changes to your FRACTINT.CFG file, make a backup copy before you begin making your changes. (I'm a lazy file backup person -- I just right click the file and choose 'Copy'; then I right click 'white space' in the same folder (where there is no file name) and choose 'Paste'.) If you are not familiar with the Fractint configuration file concept, here is what the program does: - For images that fit on the screen, Fractint will display the image while it is being calculated. - For fractals that are too large to be displayed while they are being calculated, Fractint creates the image using RAM and/or hard disk drive space on your computer. The line number of the current line of pixels being generated is displayed during the image calculation (remember, there is no image being displayed.) You still must save your image after the image is completed. - Resolutions calculated using RAM and/or hard disk drive are identified in 'Fractint for Windows' beta 5's file as: "Win32 Disk Video". The DOS version of the program lists these resolutions as: "Disk/RAM 'Video'" Notes: - You don't need to specify a key binding (1st entry on the line) for your new resolutions. - Don't specify duplicate key bindings. - There is an additional entry on each line in the 'Fractint for Windows' format of FRACTINT.CFG compared to the DOS FRACTINT.CFG file format. Appended to the end of each 'Fractint for Windows' line is either: ",disk" or ",gdi" (the driver). - Order in the file is not important. However, the order of lines in the file is the order that the resolution choices will be presented to you when you press the <del> key in Fractint. - Don't use the <tab> character in the file. - Remember, images of resolutions that are *not* shown in the list of Video Mode choices as "Disk Video" *cannot* be read back into Fractint and displayed on the screen. (Sorry for the double negative above -- the positive version: Only images of resolutions that *are* shown in the list of Video Mode choices as Disk Video can be read back into Fractint and displayed correctly.) - Use a general purpose image viewer to see your Fractint images that are not of Fractint screen-viewable resolutions. - In 'Fractint for Windows' sometimes comments (next to the last field on the line) that you enter into the file do not appear in the list of resolutions displayed by the program. - I don't know what the limit on the maximum x and or y pixel dimensions are in Disk Video mode in 'Fractint for Windows' or DOS Fractint. - I have successfully calculated images of 8192 x 8192 pixels in 'Fractint for Windows' and 5120 x 4096 -- which is (1280 x 1024) x 4 pixels in DOS Fractint. I re-sized the 5120 x 4096 image in an image viewing program using a built-in smoothing algorithm and got an anti-aliased image of 1280 x 1024 pixels as the result. This image has greatly reduced 'pixilation'. Example of adding lines to FRACTINT.CFG: (with a bunch of spaces removed so the lines won't wrap around during emailing.) Original line from *Fractint for Windows* FRACTINT.CFG file: ------------------------------------------------------------ CF5 ,Win32 Disk Video,0,0,0,0, 19, 8192, 8192,256,,disk Lines added to *Fractint for Windows* FRACTINT.CFG file: ------------------------------------------------------- ,Win32 Disk Video,0,0,0,0, 19, 512, 512,256,,disk ,Win32 Disk Video,0,0,0,0, 19, 640, 640,256,,disk ,Win32 Disk Video,0,0,0,0, 19, 1300, 1000,256,,disk For the DOS format of the FRACTINT.CFG file remove ",disk" from the end of each line. I successfully created images using all 3 of the above resolutions that I added to my 'Fractint for Windows' FRACTINT.CFG file. - Hal Lane ######################### # hallane@earthlink.net <mailto:hallane@earthlink.net> # #########################
-----Original Message----- From: fractdev-bounces@mailman.xmission.com [mailto:fractdev-bounces@mailman.xmission.com]On Behalf Of Tim Wegner Sent: Sunday, January 11, 2009 1:09 PM To: Daniele Corradetti Cc: fractdev@mailman.xmission.com; Jonathan Osuch Subject: Re: [Fractdev] Question on Fractint Image Resolution
Daniele, the original DOS version of Fractint had a resolution limit of 2048 pixels. However it also has a means of generating multiple images and piecing them together, see the documentation. I believe this effectively overcomes the limit. (Sorry for not being more specific, it's been a while since I looked at this.)
Rich Thompson has created a Windows version that may overcome that limit.
You didn't mention which version you are using. I am cc'ing both Jonathan Osuch, who has been mainting the current version, and Rich. However my suggestion would be to join the mailing list at:
http://mailman.xmission.com/cgi-bin/mailman/listinfo/fractint
since there are many people who could help you better than I can.
Tim
Dear Tim Wegner, I'm a mathematician from Pisa, Italy. Let me tell you how glad I am finding a new update of FractInt for Windows Vista. Indeed this program means a lot for me since I was just a kid when it was released and I grew up with its fractal. Most of my love for mathematics probably came from it.
Anyway, I got a problem with the maximum resolution of Fractint. Indeed I would need some fractals in higher resolution (more then 2048x2048). I saw in some post of yours that the max resolution 2048 is crucial. Is there any way to avoid this limit?
Thank you for your answer Best Kinds
Daniele
----------------------------------------------- Dr. Daniele Corradetti via Pellas 34 50141 Firenze Italia tel.: +39 3497896073 email.: d.corradetti@gmail.com skype: d.corradetti ----------------------------------------------
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Hal Lane wrote:
Rich Thompson's 'Fractint for Windows' and the current DOS Fractint version can both overcome the limit of 2048 pixels by using a configuration file to allow the creation process of fractals to use disk files and or RAM instead of the screen.
First, my apologies to Rich, I had meant to cc him on the email, but pasted the list by "mistake", but it was a good mistake I think! Thanks Hal! I did remember overcoming the pixel limit (I sure I coded a lot of the high rez logic myself) but I had forgotton the details. Your answer cleared it up nicely. Rich or anyone, can you remind me where Rich's FractInt for Windows executable and source is? Thanks, Tim
"Tim Wegner" replied to a [Fractdev] posting:
Rich or anyone, can you remind me where Rich's FractInt for Windows executable and source is?
For many years, one could easily download the executable, the source, or both. Each was in a single "compressed" file format (tarball, zip, arc, etc.) and made accessible to the public. Now, this "FREEWARE" software seems to be getting away from allowing others access, not only the information about it (Spanky server being down and out) but to the source code. No longer can anyone retrieve the current working versions' source with a single download, nor are there any instructions for doing so on the web sites that are still functioning. An executable for Rich's Windows version is at: http://www.nahee.com/Software/FractInt_Setup_21-00_beta-5.msi And most of the older versions (both executable and source) may be found at the following: http://www.nahee.com/Software/+FractInt_(OLD)/ I would also have a copy of the Spanky site, but have yet to get RSYNC to acquire what is at: lin27.triumf.ca::spanky even though Noel said it was setup for me to retrieve to my IP address. I was hoping to have a full mirror for Spanky available. Sincerely, P.N.L.
participants (3)
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Hal Lane -
Paul.N.Lee＠Worldnet.att.net -
Tim Wegner