Last time I implemented something like this was in uni about 10 years ago now, but I recall that not being the case – you should be able to render just the visible area, as (at least in the case of Mandelbrot) the data is independent.

Do you mean to render the same view (what you see), but at a higher resolution? So that, for example, you can print it out?

No, I mean that at a certain level of zoom the fractal appears to stop being generated, and I end up just zooming into pixel blocks. For example, if you try to recreate https://www.youtube.com/watch?v=0jGaio87u3A you can only for for a bit before the fractal appears to stop generating.

It's because currently FractalViewer is not designed to work around floating point precision limits in JavaScript. So, after zooming a bit, you hit the "pixelated wall". I plan to address this issue in future release of FractalViewer. See https://github.com/valera-rozuvan/FractalViewer/issues/10 .

More information on JS floating point numbers, their limitations, and ways to work around those limits - can be found in this informative article http://blog.chewxy.com/2014/02/24/what-every-javascript-deve... .