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This is excelent Ken! did you use exponential smoothing for coloring?

I asked because I get much the same aethereal look with some fractals by using that method, wich I know from Ultrafractal but it's in fact this.

Take a look at this image, I used exponential smoothing for coloring the fractional part only of the modulus in the formula z=1/(z*z+c):



Now it's my favorite coloring method, all of my last 2D fractals uses it, and will be the main used in the fractal program I'm writing because it works very nice with the hybrids I'm doing. But is not the same as Ultrafractal's because I'm not using the complex Z, just the modulus. You have to add this into the iteration loop: sum=sum+exp(-1/abs(NewModulus-OldModulus)), then color using the resulting value of "sum".