Good ole Mandel

[sonofthort]

[The Rev]

Nice Find!  I never cease to wonder at what you can find exploring the M-set.

The Rev

[Duncan C]

Nice image. The colors work really well. Care to give us the "specs?"

(image coords and magnification, and coloring method.)

It looks like you use some sort of log color scheme, since the color change gets smaller in the highest-iteration areas, thus reducing the amount of visual clutter.


Duncan

[bib]

Just for fun I tried to replicate this image. OK it's not perfect, but the idea is there, and it took me less than 5 minutes
cheers!

Fractal1 {
fractal:
  title="Fractal1" width=1024 height=600 layers=1
  credits="arsene;12/22/2010"
layer:
  caption="Background" opacity=100
mapping:
  center=-0.592127179230873203/0.619809619674384787 magn=1.009703E8
  angle=41.45
formula:
  maxiter=50000 filename="Standard.ufm" entry="Mandelbrot" p_start=0/0
  p_power=2/0 p_bailout=4
inside:
  transfer=none
outside:
  density=1.5 transfer=sqrt filename="Standard.ucl" entry="Smooth"
  p_power=2/0 p_bailout=128.0
gradient:
  smooth=yes rotation=142 index=27 color=14876672 index=509
  color=15031032 index=581 color=16318208 index=200 color=16166783
  index=-102 color=10070157 index=-54 color=11428589
opacity:
  smooth=no index=0 opacity=255
}

[sonofthort]

Nice image. The colors work really well. Care to give us the "specs?"

(image coords and magnification, and coloring method.)

It looks like you use some sort of log color scheme, since the color change gets smaller in the highest-iteration areas, thus reducing the amount of visual clutter.


Duncan

Sorry, I don't have the coordinates or magnification.  I produced the image using my own program which doesn't provide these.

The color method is actually simple escape time 

[sonofthort]

Just for fun I tried to replicate this image. OK it's not perfect, but the idea is there, and it took me less than 5 minutes
cheers!

Fractal1 {
fractal:
  title="Fractal1" width=1024 height=600 layers=1
  credits="arsene;12/22/2010"
layer:
  caption="Background" opacity=100
mapping:
  center=-0.592127179230873203/0.619809619674384787 magn=1.009703E8
  angle=41.45
formula:
  maxiter=50000 filename="Standard.ufm" entry="Mandelbrot" p_start=0/0
  p_power=2/0 p_bailout=4
inside:
  transfer=none
outside:
  density=1.5 transfer=sqrt filename="Standard.ucl" entry="Smooth"
  p_power=2/0 p_bailout=128.0
gradient:
  smooth=yes rotation=142 index=27 color=14876672 index=509
  color=15031032 index=581 color=16318208 index=200 color=16166783
  index=-102 color=10070157 index=-54 color=11428589
opacity:
  smooth=no index=0 opacity=255
}

That is amazingly close

[sonofthort]

una mas


Modifying the color palette emphasizes particular shapes

[Duncan C]

Just for fun I tried to replicate this image. OK it's not perfect, but the idea is there, and it took me less than 5 minutes
cheers!

Fractal1 {
fractal:
  title="Fractal1" width=1024 height=600 layers=1
  credits="arsene;12/22/2010"
layer:
  caption="Background" opacity=100
mapping:
  center=-0.592127179230873203/0.619809619674384787 magn=1.009703E8
  angle=41.45
formula:
  maxiter=50000 filename="Standard.ufm" entry="Mandelbrot" p_start=0/0
  p_power=2/0 p_bailout=4
inside:
  transfer=none
outside:
  density=1.5 transfer=sqrt filename="Standard.ucl" entry="Smooth"
  p_power=2/0 p_bailout=128.0
gradient:
  smooth=yes rotation=142 index=27 color=14876672 index=509
  color=15031032 index=581 color=16318208 index=200 color=16166783
  index=-102 color=10070157 index=-54 color=11428589
opacity:
  smooth=no index=0 opacity=255
}

That is VERY close. What do the color numbers mean? Are those decimal equivalents of hex RGB triplets like 00FF00 for pure green? And what do the index numbers mean in the gradient? At first I thought they were iteration counts, but the numbers are not in order, and the last couple of values are negative.