I have what is probably a minor problem with writing and saving to "Disk video/ram". Briefly, I edited the config file and added a line for another resolution. Works fine for almost all my saves, but there are six fractals (out of 293 processed do far) that will not save in the new mode. Can anybody tell me why?, and what I can do to fix this? Just for general info: The newly added mode is at 2560x2048. The next resolution down at 2048x1536 works on all the pictures, 'cause I've tried both. Is the problem with the cache size? Can this be adjusted? Any help, information, etc, would be greatly appreciated. Even a negative response is good, if the problem is intrinsic and I'm wasting my time trying to fix what can not be fixed. David M Fisher
David Fisher wrote:
Briefly, I edited the config file and added a line for another resolution. Works fine for almost all my saves, but there are six fractals (out of 293 processed do far) that will not save in the new mode.
May we have a look at one (or more) of these six PARs (and if needed, the FRMs) which will not work??
----- Original Message ----- From: "Maryetta Campbell" <maryetta.c@earthlink.net> To: <fractint@mailman.xmission.com> Sent: 26 November, 2005 08:05 Subject: Re: [Fractint] Disk video/ram
David Fisher wrote:
Briefly, I edited the config file and added a line for another resolution. Works fine for almost all my saves, but there are six fractals (out of 293 processed do far) that will not save in the new mode.
May we have a look at one (or more) of these six PARs (and if needed, the FRMs) which will not work??
Thank you for your response. Attached are the six fractals concerned. I tested the par files and they display on my system, the originals being created at SF7 resolution. Also attached is a copy of my fractint.cfg which might be useful. Other info possibly useful: chip: AMD 64 3200+ 1.84Ghz clock 1.00Gb ram OS: MS DOS 6.2 on removeable bootable HD. No windows present on system when fractint is running.>
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On Sun, 2005-11-27 at 14:18 -0800, David Fisher wrote:
Thank you for your response. Attached are the six fractals concerned. I tested the par files and they display on my system, the originals being created at SF7 resolution. Also attached is a copy of my fractint.cfg which might be useful. Other info possibly useful: chip: AMD 64 3200+ 1.84Ghz clock 1.00Gb ram OS: MS DOS 6.2 on removeable bootable HD. No windows present on system when fractint is running.>
What you are seeing is Fractint switching to floating point math when either the X or Y resolution is larger than 2048. Why that happens has to do with whether the pixel values are pre-generated in a grid, or the pixel values are generated on the fly. The value of 2048 was arbitrarily chosen (so it might be possible to change it) as an indication that the grid would be too large to fit into the available memory. This is memory in a specific location and of a specific size (32 Kbytes, I think), which is shared with the graphics modes. Jonathan
----- Original Message ----- From: "Jonathan Osuch" <osuchj@avalon.net> To: "Fractint and General Fractals Discussion" <fractint@mailman.xmission.com> Sent: 27 November, 2005 19:21 Subject: Re: [Fractint] Disk video/ram
On Sun, 2005-11-27 at 14:18 -0800, David Fisher wrote:
Thank you for your response. Attached are the six fractals concerned. I tested the par files and they display on my system, the originals being created at SF7 resolution. Also attached is a copy of my fractint.cfg which might be useful. Other info possibly useful: chip: AMD 64 3200+ 1.84Ghz clock 1.00Gb ram OS: MS DOS 6.2 on removeable bootable HD. No windows present on system when fractint is running.>
What you are seeing is Fractint switching to floating point math when either the X or Y resolution is larger than 2048.
Why that happens has to do with whether the pixel values are pre-generated in a grid, or the pixel values are generated on the fly. The value of 2048 was arbitrarily chosen (so it might be possible to change it) as an indication that the grid would be too large to fit into the available memory. This is memory in a specific location and of a specific size (32 Kbytes, I think), which is shared with the graphics modes.
Jonathan
Ooookayyy, I think. But before I go any further with this I just want to posit that I am just "joe six-pack", not a programmer so if I get stupid bear with me. Thx Now,,,,,I understand somewhat, generally, what the problem is. Is there someway I can change the limiting value, and possibly the specific memory size, without a smoke and burn? I have rooooom on my hard drive to spare, as well as partitions to logical G, if that is where the 32Kbytes is placed I am willing to use an whole partition if necessary. I really need to get rid of the jaggies on the arcs. I have a printer which will handle up to 4800x4800, but not enough lifetime remaining to utilize it, so the 25xx 20xx resolution is a compromise, and a good one if I can make use of it. With proper information I am willing to try any fix, apprehension is not a factor; I am just smart enough NOT to mess with memory unless it is a stick. If you know what to do I would appreciate any information. Or point me in the direction I need to go and allow me to ask questions for clarity before I really screw it up. I am really anxious to fix this if I can. Thanks again for your time and effort. btw: What did you think of the pix? Or could you tell the problem just from looking at the pars? Later, David M Fisher sunfish@intercom.net
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David,
Now,,,,,I understand somewhat, generally, what the problem is. Is there someway I can change the limiting value, and possibly the specific memory size, without a smoke and burn?
No, but I can create an experimental version that will allow an integer math relolution of 3000x3000 and email the executable to you. My experiments with this version did not reveal any obvious problems. I will need to look closely at the code before I consider making this a permanent change. It might make sense to tie the switch to floating point to magnification as well as resolution, or some combination. Let me know if you have a high speed connection and/or don't mind getting an email with a 588 KByte attachment.
btw: What did you think of the pix? Or could you tell the problem just from looking at the pars?
I liked them. Especially sf700233. I made a par of one of the "bad" images, then compared it with the original. The new par had float=yes and the original didn't. Jonathan
----- Original Message ----- From: "Jonathan Osuch" <osuchj@avalon.net> To: "Fractint and General Fractals Discussion" <fractint@mailman.xmission.com> Sent: 28 November, 2005 17:49 Subject: Re: [Fractint] Disk video/ram
David,
Now,,,,,I understand somewhat, generally, what the problem is. Is there someway I can change the limiting value, and possibly the specific memory size, without a smoke and burn?
No, but I can create an experimental version that will allow an integer math relolution of 3000x3000 and email the executable to you. My experiments with this version did not reveal any obvious problems. I will need to look closely at the code before I consider making this a permanent change. It might make sense to tie the switch to floating point to magnification as well as resolution, or some combination.
Let me know if you have a high speed connection and/or don't mind getting an email with a 588 KByte attachment.
btw: What did you think of the pix? Or could you tell the problem just from looking at the pars?
I liked them. Especially sf700233.
I made a par of one of the "bad" images, then compared it with the original. The new par had float=yes and the original didn't.
Jonathan
Thank you for the prompt response. Mail away. I only have a dial-up cx but I'll let go all night, if necessary, to fix the problem. Would you like some more pars of the stuff I save? I can quite honestly say that I have pics much better than the ones I sent you. I don't mind sharing, as long as they aren't used commercially, or sold. This is what I do with them. Thank you, again, Sir, David ____________________________________
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David Fisher wrote:
I have what is probably a minor problem with writing and saving to "Disk video/ram". Briefly, I edited the config file and added a line for another resolution. Works fine for almost all my saves, but there are six fractals (out of 293 processed do far) that will not save in the new mode. Can anybody tell me why?, and what I can do to fix this? Just for general info: The newly added mode is at 2560x2048. The next resolution down at 2048x1536 works on all the pictures, 'cause I've tried both. Is the problem with the cache size? Can this be adjusted?
Logically, if all BUT six work fine at that particular resolution, then I doubt it to be something with that setting or cache. Most likely something unique with those six fractals. And without having the parameter/s and forumla/s to test with, it makes it even more difficult to diagnose. Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
participants (4)
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David Fisher -
Jonathan Osuch -
Maryetta Campbell -
Paul N. Lee