Can't (easily) render high-resolution static images

[jblang]

From cosmo.gu...@gmail.com on November 17, 2010 10:44:23

About a year ago I started playing with fractal photoediting for my endeavours in SpaceCrafting (see http://cosmic-spacecrafts.blogspot.com ). I wanted to use Xaos fractals to make my art but the only way I could render higher resolution images was to increase my display size , and still those images were not large enough so I kind of forgot about Xaos. But recently my interest in Xaos was piqued again while browsing through my old material looking for unused creativity to harvest into something presentable. I'm so amazed with how awesome this program is, it is truly a "legacy" program in the best sense of the word. I compare my feelings of excitement to about 10 times joy of discovering a text-to-speech software on an old Amiga about 20 years ago. However, I think it could use one small improvement. Create a dialogue to render a fractal in any size one wants (or perhaps it would be easier to force 4:3 ratio and multiples of 16 or something like that). Right now I have figured out a "hack" to allow me to render high-resolutions using your animation render. I explained how I did this in my deviatart post here: http://playful-geometer.deviantart.com/art/Scarlet-Flare-184191234?q=sort%3Atime+gallery%3Aplayful-geometer&qo=0 . It's kind of a hassle, and it generates 2 of the same image, doing twice the work... but it will do for now. Love and light to all you fellow space cadets !

Original issue: http://code.google.com/p/gnuxaos/issues/detail?id=54

[jblang]

From skyd...@gmail.com on December 09, 2010 12:47:52

I too would LOVE the ability to render high resolution images from XaoS. This would be a fantastic enhancement. Thank you so much for at least the workaround, which shows me that indeed the program has the innate ability to do this. It seems like 4K resolution is the most the renderer will handle, but that's a whole lot better than my screen resolution. Now if we could just get a function in the File Menu to "Render Image" that would be ideal.
Thanks for everything!

[jblang]

You can use the Render Animation command in the Misc menu to render a still image. You just need to save it as an xpf, then change the extension to xaf and load it in the Render Animation dialog. This will allow you to render a single png at any resolution you want.

[hruyter]

BACKGROUND: jblangs (J.B.Langstons) recommendation of November 9, 2013, gave me big hope, because I sometimes would need to render large Xaos posters for an Epson printer with a resolution of 2880 x 1440 dpi, the printout being over 60 cm (24 inches) wide. The Xaos image should therefore go up to 42000 by 30000 pixels. So far rendering images above 16.000 by 11.500 result in the error "Can't create control buffer", which jblang is aware of [malloc() versus alloca() issue, waiting for Xaos version 3.6 hopefully].

EXPIENCE: When I use the Render Animation Dialog, with the source file renamed from xpf to xaf, the computer does just nothing, regardless of low or high resolutions. It even does not seem to create any new file.

QUESTION: What are the right parameters to put in the Render Animation Dialog, in order to get Xaos 3.5 to perform (under Windows XP) and render the desired still image?
Width and Heigt: desired, in pixels? Actual Width and Height in cm: Should that be the PC screen size? Frequency: What to put in? Type of image: Truecolor. Antialiasing: Yes. Always recalculate: No? MPEG: No. Frame distance: ??.

[jblang]

I'm closing this issue as a duplicate. The size limitations on images due to image constraints is covered by #77, and the ability to more easily specify a size of a png in the UI is covered by #14.