julia fractal - black and white - rendered using the distance estimation method
https://files.mastodon.social/media_attachments/files/113/096/904/331/383/721/original/96f5e8b07f6f38d5.png
learn about the distance estimation (by gradient) method for rendering the fine detail of the Julia and Mandelbrot fractals
the method avoids the "finite grid of points to test" problem which can miss fine detail
Make Your Own Mandelbrot 2nd Edition
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