Fractals/Esher like tilings

name name is misleading because there is no tiling here ( no tiles) nam comes from the book The Science of fractal images by Heinz-Otto Peitgen, Dietmar Saupe, Springer (page 187 ) {Peitgen, H.O. and Fisher, Y. and Saupe, D. and McGuire, M. and Voss, R.F. and Barnsley, M.F. and Devaney, R.L. and Mandelbrot, B.B.}, 2012 The Science of Fractal Images https://books.google.pl/books?id=5xvSBwAAQBAJ Springer Science & Business Media, 2012 187 9781461237846 algorithm Escher like tilings is a modification of the level set method ( LSM/J). Here Level sets of escape time are different because targest set is different. Here target set is a scalled filled-in Julia set. For more description see Fractint : escher_julia page 187 from The Science of fractal images by Heinz-Otto Peitgen, Dietmar Saupe, Springer {Peitgen, H.O. and Fisher, Y. and Saupe, D. and McGuire, M. and Voss, R.F. and Barnsley, M.F. and Devaney, R.L. and Mandelbrot, B.B.}, 2012 The Science of Fractal Images https://books.google.pl/books?id=5xvSBwAAQBAJ Springer Science & Business Media, 2012 187 9781461237846 Images References