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4D Julia Set Explorer

Explore 2D cross-sections and 3D hyperplane volumes of the 4-dimensional Julia set. Supports both complex z → z² + c and quaternion q → q² + c iteration.

Navigation

←→ Move left / right  (along screen-x)
↑↓ Move up / down  (along screen-y)
WS Move in / out  (3rd axis)
QE Move ± in remaining dimension
+− / scroll   Zoom in / out
Mouse drag   Pan (2D) • Orbit (3D)

4D Rotation

1–6 Select rotation plane
<> Rotate in selected plane

Display

Tab Cycle view modes (2D Slice / 2D Julia / 3D)
F Toggle fractal type (Complex / Quaternion)
C Cycle color palette
IK More / fewer iterations
P Cycle 3D quality preset
R Reset view
H Toggle this help

2D Julia Mode

Move mouse to change z₀ (initial value)
Mouse at center → z₀ = 0 → Mandelbrot set
Green outline = Mandelbrot set boundary
Blue lines = iteration escape path at cursor

2D Chess Mode

Two styles: Escape (iteration count + angle) and Position (last bounded z)
[] Decrease / increase square size
\ Toggle chess style (Escape / Position)

Tip: The Mandelbrot set is the c-plane cross-section at z₀ = 0. Rotate in the X–R or Y–I planes to smoothly blend between Julia and Mandelbrot views.

View Mode
Fractal Type
4D Rotation
XY 0°
XR 0°
XI 0°
YR 0°
YI 0°
RI 0°
4D Rotation Plane
Move (Screen)
Move (Depth)
View Controls
Zoom
Iter
Color