Voidulator

Emission

Reflectivity

Max bounces

Beam width

Edge softness

Edge intensity

Layer mode

Blend mode

Beam count

Emitter dot

Center emitters

Speed 0.1000

Room

Room shape Eccentricity

Wall bend

Colors

Scheme

Drag swatches to reorder layers.

Per-beam Rotation

Pattern

Pulse

Enable Shape Amplitude Frequency Speed Softness Duty cycle

Duty: left = mostly dark, right = mostly light.

Beam Shapes

Enable Shape Density Size Flow Spin

Click labels to reset. Flow: left=in, right=out.

Rings

Enable Activate

Auto spawn Align

Rotation (°)

Spin (°/s)

Emitters

Geometric Speed (px/s)

Lifetime (bounces)

Taper Rainbow Interval (s)

Per activation

Spacing (s)

Expanding rings from their own emitters (teal dots). Lifetime in bounces: 1 = reach the wall, 2 = back through center. Range sliders pick a random value between the two markers.

Wave Field

Enable Pulse Waveform Ring rate

Ring sharpness Emitters

Geometric Align

Rotation (°)

Spin (°/s)

Frequency

Amplitude Wave speed Damping Brightness Speed ×

Walls Color Resolution

A real wave-equation simulation inside the room. Emitters are wave sources; click the stage to drop a ripple. Reflecting walls give resonances — try the ellipse with a source on a focus. Inspired by Nils Berglund's simulations.

Trails

Enable Length Hue shift

Length: trail duration. Hue shift: 0=same color, 180=complementary.

Glow

Enable Strength

Threshold

Real laser glow — bright beams bleed light like through haze. Threshold: how bright a pixel must be to bloom.

Phosphor Walls

Enable Persistence (s)

Intensity

Width (px)

Beams paint glow onto the walls where they strike; it fades over Persistence seconds. Great with bent walls — the hot spots reveal the caustics.

Scenes

Scene Name

Transition

Screensaver

Minutes per scene in screensaver mode (🌙 button).

File Presets

Audio Reactive

Mic input

Sensitivity

Smoothing Level

Uses mic/system audio. Press F for clean fullscreen.

Modulation Matrix

Tempo (BPM)

LFO 1 sync LFO 1 (Hz)

LFO 2 sync LFO 2 (Hz)

Routes sources to parameters. Amount is bipolar — negative inverts. Audio sources need mic listening; LFOs always run.

Beat Detection

Detect

Sensitivity

Envelope decay On beat: ripple

On beat: hue jump

Hue step (°)

Needs mic listening. The beat envelope is also a source in the Modulation Matrix.

MIDI

Input

Status

Off

Learn

Notes → beat

Click Learn, then move a knob or fader on your controller to bind it.

Record Video

Resolution Record

Exports WebM at the chosen height; width follows the window aspect. Keep the tab visible while recording. 4K is GPU-heavy.

Bonus

Emitters

Align

Rotation (°)

Spin (°/s)

Move speed

Spread (°)

Angle (°) Global speed

Speed range

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Voidulator

Voidulator