As part of my DHTML++ demo, I wrote an ASCII Art Mandebrot Fractal zoomer. Unfortunately, the current version is waaaay to slow to calculate the frames in real-time. Apparently they did not optimize JavaScript in Internet Explorer for rendering fractals in real time.
I am working on a much smarter algorithm, which only calculates the fractal once. I intend to use variable accuracy. This means I can get more detail around the area I zoom in to, so I do not need to recalculate the fractal for every frame. However, this is a bit more complex than it sounds, so don't hold your breath.
In the mean time, here's an example of what it will look like:
http://www.youtube.com/watch?v=opk9T_FK5ZA
The quality is rather poor. If you want to download the original, it is 20Mb and available at:
http://Skypher.com/SkyLined/download/Fractals/AsciiArtFractalZoom.avi.
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