#Fraktaler #Fraktaler3 v3.1 #release

#DeepZoom #hybrid #EscapeTime #fractals #MathArt #MandelbrotSet #BurningShip

binaries for Web, Android and Windows, built from Debian Linux, source for all those platforms

https://fraktaler.mathr.co.uk/

changes since v3 (June 2025):

- histogram colouring

- partial KFR importer (no colouring yet)

- web version uses full window canvas

- doubleexp number type

- float128 number type (where available)

- fix: correct matching between appearance of CPU and OpenCL backends (thanks to JWM for reporting)

- fix: compatibility with toml11 v4.

- fix: builds and runs in Termux + Termux X11 on Android

- fix: no 'quit when done' option on Web or Android.

- fix: correct status when pressing ESC after rendering is complete.

- internal: build system improvements.

did some minor hacking on #Fraktaler3 today for the first time in months.

- fixed it so it works with toml11 v4 (run "make") as well as v3 (run "make TOML11=3")

- removed "quit when done" checkbox from android and web builds, where it doesn't make sense

- fix: correct status is now shown when pressing ESC after the rendering is complete

- added double precision version of floatexp (separate floating point mantissa and integer exponent, for wider dynamic range necessary for very deep zooms); the extra precision of doubleexpover single precision floatexp turns out to be necessary sometimes (more often with higher power formulas and higher iteration counts)

- fixed the mildly bitrotted quadruple precision float128 support, now works again enabled (run "make") and disabled (run "make FLOAT128="). hopefully it won't be necessary to use it for more than checking that double precision image are plausible, because it's very slow.

#fractals #DeepZoom #FloatingPoint

#zoomasm v3.4 #release

zoomasm assembles zoom videos from exponential map key frames, as exported by #Fraktaler #Fraktaler3 and other software for
#DeepZoom #fractals #MathArt

Changes in version 3.4 (2025-06-11) since version 3.3 (2023-07-13):

- support dual channel iteration counts (N0+N1) for very high iteration counts (above 4 giga iterations)

- update to current library versions

binaries for Windows, built from Debian Linux, source for all those platforms. new homepage at

https://mathr.co.uk/web/zoomasm.html

#Fraktaler #Fraktaler3 v3 #release

#DeepZoom #hybrid #EscapeTime #fractals #MathArt

binaries for Web, Android and Windows, built from Debian Linux, source for all those platforms

https://fraktaler.mathr.co.uk/

changes since v2.1 (July 2023) are too many for this toot, the main new feature is flexibile colouring with GLSL shader fragment.

changes since v3~preview (June 2024) are quite small (a few bug fixes, some enhancements).

fixed two failure modes in #Fraktaler3 for #FractalFriday (thanks to FractalLion for bug report).

Previously:

- if saving TOML failed, program exited abruptly with uncaught exception

- if saving EXR, PNG, or JPG failed, program would continue without reporting the error - this could lead to calculation of a whole zoom out sequence with nothing to show for it (arguably worse than the crash)

Now:

- if saving fails, a modal dialog box is shown which blocks everything until Ok is clicked (and batch rendering is aborted if it was in progress)

#error #failure #BugFix #UX

• #fractalfriday •
Snowflakes in the summer.

Formula:
z[n+1] = z ^ 2 + c if n is even
z[n+1] = (|re(z[n])| + i * |im(z[n])|) ^ 2 + c otherwise

Coordinates:
x: -1.222863787129900261887234793713035645825654764322469867887706927372
044902817108072555284834361841804287411321152888089078829499066532882
82462782515524602788901445356355

y: -0.316882263887136317186914261477387097906793161357984046675421543272
170195542062586218034057608369559704645294043681870928976552851876484
929325312670732277996794991755322

magnification: 3.3386803E155

#mandelbrot #burningship #fractal #hybrid #fractalart #digitalart #mathart #snowflake #fraktaler3