I use 300dpi too (exactly 12pixel/mm), and send image using a program which send the print to an online printshop. However you don't have to care about 'dpi' but only of pixels. 75x50cm=9000x6000 pixels. If i order a lot of prints i use jpeg compression, never go under 90% quality. at 89% the file is very smaller than 90% (i don't know why....), but there are some compression artifact. At 90% is ok. For compressing in jpg i use imagemagick (open source) instead of photoshop. I use it also to do high quality downsize to post here and in my website.

Thanks.... my cpu is already at work :-)

A lot of fractals formula use an iteration like
x-->f(x)
if you use x-->f(n,x) you can ontain 'more caos'.

In my formula if k1=1 you obtain classic mandelbrot/julia. In my example k1=1+epsilon, where epsilon is a perturbation that depend both from x and z (z, in my example, is n).
I use zz=double (z) do convert integer to double float.

I use a lot this idea in my fractals, not only as in the examples but also in other ways. I posted this formula because i think it produces very nice effects, quite unusual in fractals.

However i don't think you will obtain any nice effect with a txt based fractal :-). Also, with the parameter i give you in the example, nice spot and perturbation is only after a bit zooming, that you can find only with a graphic interface.

Message edited on: 02/17/2006 12:23

To upload more than 1 image / day youhave to pay a little fee. Il sito molto carino.... fa inoltre molto piacere incontrare dei 'compaesani' su questo bellissimo forum! Ciao HG

I don't use UF.... i only want to suggest a formula. The formula is written in c code, to use it in UF someone should traslate it in UF language. I used this formula directly in a program i write to do fractals.

AARgh.... I did a fractal on winter few days ago.... and i liked it a lot. http://www.renderosity.com/viewed.ez?galleryid=1152255&Artist=HellGauss&Start=1&ByArtist=Yes I have to redo one similar :-) Can i use a similar formula, or i have to do something different from previous posted fractals??

I can try to give an answer (altough i'm not able to do multilayered image...).

Last year i did a small exposition of my fractal-print. I was exposing with other 'traditional artist' (oil on canvas, pencil, etc...). Someone, looking my prints, said that they was beutiful, but very geometric. There was no feeling from that pictures. Maybe that playing with texture and layers a fractal artist can express himself more than with a simple formula. It is very difficult to paint a feeling with only one layer :-), even if a geometric image can still be beautiful....

(sorry for bad english)

Message edited on: 02/05/2006 12:13

I started since i joined renderosity :-) (the true is that i've never started with multilayered fractals....)

It would be nice if, with the images, we post the forumulas and the parameters of the images. I like very much 'simple fractals' because they are closer to math and geometric art than 'multilayered' and textured one. Ciao Dario

If you interested one layer images, you can see my gallery. I only use one layer, and n_iteration=color. I just play with basic formula and parameters.