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Controls

Radim Brnka edited this page Jan 10, 2026 · 21 revisions

Control Areas

Mandelbrot Julia
image image

Control Area Buttons

Each of these buttons also has a respective hotkey.

Button Action
Mandelbrot/Julia Switches between Mandelbrot and Julia fractals. When pressed with Ctrl, the fractal variables are persisted so you can see the equivalent sets. (Z)
Presets Pre-programmed interesting zooms for you to explore (Num 0-9)
Dives Pre-programmed animated loops for you to explore (Julia only) (Shift+Num 0-9)
cx/cy Sliders to adjust the C value (Julia only) (Alt+Arrows)
Reset Resets current fractal to default view (Shift+R)
Recolor Randomizes color palette (Mandelbrot mode) / Switches color palette to the next predefined theme (Julia only) (T)
Screenshot Takes a screenshot of the canvas without the controls. Includes watermark of the current coordinates. (Shift+S)
Demo/Stop Enables demo mode / Stops current animation (D)
Bottom bar click Copy full current coordinates to clipboard

Mouse Controls

Mouse Button Action
Left Button Drag Pan
Right Button Drag Rotate
Wheel Zoom
Left Button Single Click Center & Generate URL link
Left/Right Button Double click Zoom-in/out & Center
Middle Click Toggle guiding lines

Keyboard Controls

Key Action
F11 Toggle fullscreen
Enter Toggle controls
Q / W Rotate counter-clockwise/clockwise (Shift: Slower speed)
E Toggle guiding lines
Shift + R Reset
T Randomize color palette, (Shift: Cyclic color change, Alt: Reset colors)
Shift + S Take screenshot
Space Zoom-in (Option/Ctrl: Zoom-out, Shift: Smoother step)
A Force resize
Z Switch fractals with persisting params (Shows respective fractal counterpart). Julia C translates to Mandelbrot P and vice versa. (Ctrl + Switch Fractal Mode Button has the same effect)
Left / Right Horizontal pan (Shift: Smoother step)
Up / Down Vertical pan (Shift: Smoother step)
Alt + Left / Right Real part (cx) stepping (Julia only) (Shift: Smoother step)
Alt + Up / Down Imaginary part (cy) stepping (Julia only) (Shift: Smoother step)
Num 1-9 Load Preset (Shift: Start dive in Julia mode)

Touch Controls

Key Action
One Finger Pan Pan
One Finger Tap Center & Generate URL link
One Finger Double-tap Zoom-in/out & Center
Pinch / Spread Pan & Zoom & Rotate

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