RE: Re: Making an .avi from Fractint color cycling; 'Stroboscopic' color cycling
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From: Margaret Willmer <margaret@duomus.org.uk> Subject: [Fractint] Making an avi from Fractint
I am interested in making an .avi file, thence a dv film, from the colour cycling to use as an effect in a play. Does anyone know if this can be done.
Margaret Willmer London NW6 1HZ
A straightforward (if somewhat time consuming) way to create an .avi from Fractint's color cycling might be to save a .gif image in Fractint for each single step of the color cycle (using the > or < key in color cycling mode to advance or regress the color map one step). After advancing the color map one step you would exit color cycling mode and save the image. Fortunately Fractint will change the file name for you automatically, so you won't have to enter a new file name for each image you save. This would result in 256 .gif images that presumably you could feed to an .avi generation program. I'm not familiar with any .avi creation programs -- does yours accept a series of .gif files as input? <---<< Presumably the .avi or dv software would be able to take care of repeating the use of the 256 different images for use in making an .avi of longer than 256 frames. The software might even be able to reverse the order that the files are used in if you wanted that to happen during your effect. You might also consider the possibility of changing the speed of the color cycling during the effect by using the same .gif image for two or more frames in a row, although I am somewhat partial to a smooth change of colors myself... A simple, but somewhat cumbersome, way to change the speed of color cycling during the effect would be to make copies of the files (renaming the files to whatever is required by your software) if your .avi or dv generation software is not able to do this directly. Another way to do the same thing would be to save two (or more) identical copies of a particular image, one right after the other, letting Fractint do the renaming of the files for you. Thus, you would be using an identically colored image for two (or more) adjacent frames in the .avi. Hopefully, the above file duplication methods would not be needed if the .avi or dv software can create these effects -- and if you wanted them. I was recently color cycling different color maps in a Jim Muth Fractal of the Day and ran across an unusual effect. The combination of the particular color map and the pattern of data in the fractal created somewhat of a stroboscopic effect instead of a smooth change of colors. I had forgotten how sensitive color cycling can be to the particular image and color map that is used. If you are interested in this effect I could try to relocate the fractal and color map that exhibited this effect. If any parts of my proposed methods of creating an .avi are useful to you I would enjoy hearing about it. - Hal Lane, USA ######################### # hallane@earthlink.net # ######################### #################################################### -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.10.15/81 - Release Date: 8/24/05
On Thursday 25 August 2005 22:14, Hal Lane wrote: <snip>
After advancing the color map one step you would exit color cycling mode and save the image. Fortunately Fractint will change the file name for you automatically, so you won't have to enter a new file name for each image you save.
i have used similar methods in gimp, using individual layers with slight changes in mode/opacity etc, problem is it takes an awful long time ie 300+plus frames takes days but only give a few seconds of footage. someone was so kind to pass me on an update for xfractint some time ago-it is half installed, we got stuck on the colour-maps, they either did not install or were over-wriiten (do not know which)- so the update on that is missing because we haven't actually managed to get it installed yet. i would be incredibly pleased if that update does then support colour-cycling and would be everso pleased if someone knew then how to make that into .avi or .mpeg files. xaos is a programm that can makes mpeg file but as i understand it xaos uses differnt colouring aligrothims than fractint does. i don't understand maths so other than that i don't understand what the actual problem/differnce is. i have picture and i am not sure why it flickers, if it is an optical illusion or a redrawing/display problem: http://www.sende.co.uk/fract008.gif http://www.sende.co.uk/fract009.gif sammi sammi
sam ende wrote:
On Thursday 25 August 2005 22:14, Hal Lane wrote:
<snip>
After advancing the color map one step you would exit color cycling mode and save the image. Fortunately Fractint will change the file name for you automatically, so you won't have to enter a new file name for each image you save.
i have used similar methods in gimp, using individual layers with slight changes in mode/opacity etc, problem is it takes an awful long time ie 300+plus frames takes days but only give a few seconds of footage.
someone was so kind to pass me on an update for xfractint some time ago-it is half installed, we got stuck on the colour-maps, they either did not install or were over-wriiten (do not know which)- so the update on that is missing because we haven't actually managed to get it installed yet. i would be incredibly pleased if that update does then support colour-cycling and would be everso pleased if someone knew then how to make that into .avi or .mpeg files. xaos is a programm that can makes mpeg file but as i understand it xaos uses differnt colouring aligrothims than fractint does. i don't understand maths so other than that i don't understand what the actual problem/differnce is.
i have picture and i am not sure why it flickers, if it is an optical illusion or a redrawing/display problem: http://www.sende.co.uk/fract008.gif http://www.sende.co.uk/fract009.gif
sammi
sammi
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I made an enquiry on uk.rec.video.digital and someone suggested CamStudio for recording screen to avi. http://www.camstudio.org/. Now this works with Fractint for Windows 20.02 - wow - but the quality isn't too good. I can't get Winfract to save frames though. My reason for wanting to make an avi is to project the resulting film onto the ceiling of a church during a play. It may be that I have to generate the fractal live and use a projector straight from the computer. The cueing will be hard for that. I may resort to saving frame by frame from Fractint and putting that into Premiere Elements which will work. Is there a way to slow colour cycling down? That would give me more of a chance to grab the frames. It's a interesting project though -- Margaret Willmer London NW6 1HZ -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.10.15/81 - Release Date: 24/08/2005
On Thursday 25 August 2005 23:27, Margaret Willmer wrote:
I made an enquiry on uk.rec.video.digital and someone suggested CamStudio for recording screen to avi. http://www.camstudio.org/. Now this works with Fractint for Windows 20.02 - wow - but the quality isn't too good. I can't get Winfract to save frames though
oh, iread windows and iimediately see problems. i run debian sarge and xfratint ported from woody, ie i have huge hardrrive. i will look into the program as many things nowadays seem to work very well with wine (i daily curse the programmers who thought of that name for that program :))
My reason for wanting to make an avi is to project the resulting film onto the ceiling of a church during a play.
yes. it makes sense to me. my husbands parents are both quite religious, and, some of the pictures i see in their house on display are spiritual in nature, i think flames are more sop than xfractint fractals though. unless you like stuff like this; http://www.sende.co.uk/GalleryImage800900.jpeg which isn't a pure xfractint image in the sense it is composited in gimp from several xfractint layers-i wouold love to achieve simiar though by colour cycling and compositing.
It may be that I have to generate the fractal live and use a projector straight from the computer. The cueing will be hard for that.
yes. i have no interst in live vj-ing.
I may resort to saving frame by frame from Fractint and putting that into Premiere Elements which will work. Is there a way to slow colour cycling down? That would give me more of a chance to grab the frames.
i have no idea, depends i suppose on frame rate of the mpeg as well ?- have no idea how .avi works unfortunatly :(
It's a interesting project though
yes. sammi
Margaret Willmer wrote:
I may resort to saving frame by frame from Fractint and putting that into Premiere Elements which will work. Is there a way to slow colour cycling down?
Yes, after going into FractInt and displaying your image, then use the "c" key to enter into the mode that will allow you to start color cycling. By using the left and right arrow keys on your keyboard, you can control the direction of the color cycling. And by using the up and down arrow keys on your keyboard, you can control the speed of the color cycling. Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
i am in the process of re-making my web-site and need to resize xfractint renderings for easier viewing, but i would also like to make the paramwters available and am not sure if the re-sizing will destroy the coding information on the side of the images ?- i would hatew to do .par files for each image, so, how to put hundreds of images of xfractint on the web so that the code is accessible easiest ? sammi
sam ende wrote:
i am in the process of re-making my web-site and need to resize xfractint renderings for easier viewing, but i would also like to make the paramwters available and am not sure if the re-sizing will destroy the coding information on the side of the images ?- i would hatew to do .par files for each image, so, how to put hundreds of images of xfractint on the web so that the code is accessible easiest ?
Using the typical graphic editors available, to resize/resample FractInt produced images to a smaller size, will usually cause the loss of all of the FractInt specific information that is at the end of the .GIF file. But, you can load an image into FractInt and choose a smaller video mode, then save the image again, which will keep the parameter and other data as it should be. For example, I loaded an 800x600 image and then instead of taking the typical default option of SF6, I chose SF5 to bring the image up. After hitting the "s" key to save the new image, it was now at a 400x300 image size. I have done this with the current DOS version. As to whether this will happen with the "X" version of FractInt is another matter. Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
On Friday 26 August 2005 01:05, Paul N. Lee wrote:
Using the typical graphic editors available, to resize/resample FractInt produced images to a smaller size, will usually cause the loss of all of the FractInt specific information that is at the end of the .GIF file.
something to do with compression methods ? or what gimp calls interpolation ?
But, you can load an image into FractInt and choose a smaller video mode, then save the image again, which will keep the parameter and other data as it should be.
that's a great tip but would mean re-rending quite a large amount of images individually. sammi
On Friday 26 August 2005 21:40, sam ende wrote:
But, you can load an image into FractInt and choose a smaller video mode, then save the image again, which will keep the parameter and other data as it should be.
that's a great tip but would mean re-rending
or more, reload, the resizing i could do with a batch script. sammi
sam ende wrote:
On Friday 26 August 2005 01:05, Paul N. Lee wrote:
Using the typical graphic editors available, to resize/resample FractInt produced images to a smaller size, will usually cause the loss of all of the FractInt specific information that is at the end of the .GIF file.
something to do with compression methods ? or what gimp calls interpolation ?
Nothing to do with compression methods. Fractint keeps its formula and such specific information as a text field in the GIF format. Since that particular field is practically never used by anyone, very few graphics applications (not just TheGIMP!) don't bother reading it and just blank it out when they save a GIF file. -- David gnome@hawaii.rr.com authenticity, honesty, community
sam ende wrote:
Paul N. Lee wrote:
But, you can load an image into FractInt and choose a smaller video mode, then save the image again, which will keep the parameter and other data as it should be.
that's a great tip but would mean re-rending quite a large amount of images individually.
No. It does not mean re-rending any images. And I said nothing about re-rendering images. As I stated, you just load the image into FractInt with the "r" option. Then select the lower video mode and finish by using the save image "s" option. It takes all of three seconds with just about any image, even the ones that took hours to render initially. And you have all of the FractInt info still intact within the new shrunken image.
or more, reload, the resizing i could do with a batch script.
If that is what you want, then why not do it? Sincerely, P.N.L. ------------------------------------------------- http://home.att.net/~Paul.N.Lee/PNL_Fractals.html http://www.Nahee.com/Fractals/
On Saturday 27 August 2005 00:47, Paul N. Lee wrote:
or more, reload, the resizing i could do with a batch script.
If that is what you want, then why not do it?
because what i want is all the images to be off the same size with all the info in them without doing all the re-loading bit. if i do the re-loading bit i'll probebly decide half way through they're all rubbish and not do any. actually thinking about it i could put them into zipped up folder and just create thumbs. sammi
participants (5)
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david -
Hal Lane -
Margaret Willmer -
Paul N. Lee -
sam ende