Title: [ASK] Fractal Implementation
Post by: maknyosss on June 07, 2009, 07:30:28 AM
hi, now im in the middle of my thesis to implement fractal in the leaf shape, i want to created the algorithm to build the surface of leaf with part of it(stomata, feint, etc).so the program can show the leaf and it can zoom into the small part of it(stomata). but, it almost pissed me off.. :hmh:
and my question :
1. what is the best choise of fractal to implement it ?(mandelbrot, ifs, etc)
2. are there any tutorial that suit to my subject?
i using java to implement it..
thanks a lot :D
please email me : arbuuuud@yahoo.com
Title: Re: [ASK] Fractal Implementation
Post by: David Makin on June 07, 2009, 03:50:47 PM
Hi, probably the best fractal type for this is L-systems, see http://algorithmicbotany.org/papers/#abop (http://algorithmicbotany.org/papers/#abop)
IFS can be used but is a little less ideal and to get realistic leaves you could zoom into would be more difficult but not impossible.
For instance this was done by (the late and great) Dirk Monteney using Xenodream:
https://market.renderosity.com/mod/gallery/index.php?image_id=1145384&member (https://market.renderosity.com/mod/gallery/index.php?image_id=1145384&member)
Dirk's gallery (for inspiration):
https://market.renderosity.com/mod/gallery/browse.php?user_id=174399
Title: Re: [ASK] Fractal Implementation
Post by: David Makin on June 07, 2009, 06:29:18 PM
Hi, probably the best fractal type for this is L-systems, see http://algorithmicbotany.org/papers/#abop (http://algorithmicbotany.org/papers/#abop)
IFS can be used but is a little less ideal and to get realistic leaves you could zoom into would be more difficult but not impossible.
For instance this was done by (the late and great) Dirk Monteney using Xenodream:
https://market.renderosity.com/mod/gallery/index.php?image_id=1145384&member (https://market.renderosity.com/mod/gallery/index.php?image_id=1145384&member)
Dirk's gallery (for inspiration):
https://market.renderosity.com/mod/gallery/browse.php?user_id=174399
Actually if you decide to try using IFS but would like to zoom-in then the best method for that is probably using (divergent) escape-time IFS rather than the usual (convergent) chaos game or deterministic methods. As an example there's my Escape-Time IFS formula for Ultra Fractal in mmf4.ufm, here's a fern using the formula - zoom in and you'll see with the parameter settings as they are the detail level is maintained as you zoom-in and the calculation time increases but not prohibitively : Fractal2 {
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