Share your interesting mistakes

[David Makin]

I had plenty of these, I'll have to start saving them now.
A mistake in the diamond square algorithm recently carved the sierpenski triangle into my mountainside 

I managed that one in about 20 different forms when trying to get my random access location diamond-square formula working

[David Makin]

David's broken links prove that two wrongs don't make a right, but they do add the humor value. Therefore I am awarding you the "Null Pointer" award. It's after midnight and somewhere in the 2000 lines of code you just wrote in a caffeine induced frenzy is a run away link list. Bless your heart (A colloquialism in the Southern US that translates to "Sucks to be you.")

That's really strange, both images appear for me OK.
But here they are re-posted to my gallery here (I'm not putting the links to the original page because that's on Fortunecity and the pop-ups are most annoying for anyone):

An Orchid


An Orchid2

[Adam Majewski]

Hi,

http://fraktal.republika.pl/images/mandel_ArgPhi_error2.jpg
It should be external argument
code is  here :
http://fraktal.republika.pl/images/mandel_ArgPhi_error2.bmp.txt
Regards

[real_het]

Hi!

While playing around with a realime mandelbrot 'fake' zoomer, I've just ran into this interesting side effect:

(coordinates are on the 'fractaljourneys' blog under the name 'Astronaut')

The thing works like:
At every frame:
- calculate N mandelbrot points on the outline of a small circle (the radius is relative to the current zoom level)
- insert those resulting iterationcount values as a row into a texture (deal with the texture rows like they were a circular buffer)
- map the texture cylindricaly onto a cone
- draw the scene while looking inside that cone

For this 'reverse' effect:
- offset the y texture coordinate into the opposite direction
- decrease the zoom level between the frames

While animating this will look like it zooms in, but for the Mandelbrot calculations it will zoom out (sampling bigger and bigger circles in the set).

There are a few more pictures with the same effect-> http://x.pgy.hu/~worm/het/mandel/Rev

[Fractal Ken]

I misdimensioned the 2d array in a recursive subprogram for computing a Sierpinski carpet. The array needed to be a constant 729x729 in size. Depending on the level of the recursive call, I had it at 729x729, 243x243, 81x81, 27x27, 9x9, 3x3, or 1x1.

[woronoi]

[kronikel]

One of the more interesting things I came across while writing a simplified Perlin noise function

[fractower]

Nice one Kronikel. Aliasing can be beautiful. Did you find any more of your Sierpinski petroglyphs?   

[Kali]

I got this trying to render a 3D Ducks-like formula with a linear combination of two orthogonal 2D, using Trafasel's Gestaltlupe.
I later discovered a mistake in the bailout checking sentence, but I can't remember exactly what it was (I make a lot of mistakes so it's hard to remember an specific one  )

[DarkBeam]

Looks very cool, and it's puzzling as it's hard to see what's inside and what out

[kronikel]

I haven't found any more Sierpenski petroglyphs but I found some more spiral type fractals with this new Perlin noise function.
I find it pretty cool that I find fractals even in things that are seemingly totally unrelated to fractals.