Creative

Lemmings

Lemmings is an expressive audio-reactive composition in BeamTracer Audio Visualizers. Shape its response in your browser with settings, audio modulation, presets, and tips.

Open Lemmings ↗
Default demo track · live audio-reactive settings

Lemmings is an expressive audio-reactive composition in the Creative category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.

Open Lemmings

Launch the visualizer with its matching left-nav entry selected.

Quick start

  1. Start the demo track, choose a local audio file, or enable a live input.
  2. Try a preset or style first, then open the section for the part of the image you want to change.
  3. On a control with Assign modulation, open the source picker, choose a signal, and watch the slider's live fill.
  4. Use Reset to Defaults whenever you want to return to the original look.

Presets and styles

Imperial March · Bacon Hair

Audio modulation

On a control with Assign modulation, select the activity icon to open Modulate with. Choose a named source, or choose — None to leave the control unmodulated. After you assign one, its name appears below the slider; select that name to edit the route, or use Clear modulation to remove it. The slider track shows the live signal reaching the control.

Modulated controlSectionWhat the route changes
ExposureLightingSets the overall rendered brightness.
Light BrightnessLightingSets the visible strength of light brightness.
AmbientLightingControls the scene-wide fill light.
SpecularLightingSets how shiny the characters look; higher values add brighter, sharper highlights where the light catches them.
Shadow BrightnessShadow LightSets the visible strength of shadow brightness.
Ray WeightGod RaysSets how bright each light shaft is; higher values make the God Rays bolder and more solid. Available when God Rays is on.
Ray ExposureGod RaysSets the overall rendered brightness.
Floor ScrollFloorSets how fast the checkered floor scrolls beneath the characters; 0 holds it still and music can speed it up.
TurntableFloorSets how fast the whole crowd slowly spins around like a turntable; 0 stops the rotation.
Fog DensityAtmosphereMakes the scene fog thinner or denser.
Time SpeedAnimationSets how quickly time changes or moves.
Walk ReactivityAnimationScales how strongly the music drives the characters to walk; they walk when the result passes Walk Threshold and stand still otherwise.

Settings reference

Core

SettingAvailable valuesWhat it changes
Render Scale0.5x–1.5xSets the visual render scale.
Clone Rows1–24Sets how many rows of characters fill the scene.
Clone Columns1–24Sets how many characters stand in each row.
Row Spacing0.5–4Sets the spacing between visible elements.
Row Group Gap0–4Sets the spacing between visible elements.
Column Spacing0.5–4Sets the spacing between visible elements.
Column Group Gap0–12Sets the spacing between visible elements.
Group Offset X-20–20Slides the whole crowd of characters left or right in the scene.
Group Offset Y-10–10Slides the whole crowd of characters up or down in the scene.
Group Offset Z-20–20Slides the whole crowd of characters forward or back in the scene.

Lighting

SettingAvailable valuesWhat it changes
Exposure0.5x–2xSets the overall rendered brightness. Use Assign modulation to choose a source.
Light ColorColorSets the light color.
Light Brightness0x–3xSets the visible strength of light brightness. Use Assign modulation to choose a source.
Ambient0–10Controls the scene-wide fill light. Use Assign modulation to choose a source.
Specular0–5Sets how shiny the characters look; higher values add brighter, sharper highlights where the light catches them. Use Assign modulation to choose a source.
Light X-10–10Moves the main light left or right, changing the direction of the lighting and highlights on the characters.
Light Y-10–10Moves the main light up or down, changing the direction of the lighting and highlights on the characters.
Light Z-20–10Moves the main light forward or back in the scene, changing the direction of the lighting and highlights on the characters.
Light HelperOn / OffTurns light helper on or off.

Shadow Light

SettingAvailable valuesWhat it changes
Shadow X-10–10Moves the light that casts the characters shadows left or right, changing which way the shadows fall.
Shadow Y-10–10Moves the light that casts the characters shadows up or down, changing how long and steep the shadows are.
Shadow Z-20–10Moves the light that casts the characters shadows forward or back, changing which way the shadows fall.
Shadow Brightness0x–10xSets the visible strength of shadow brightness. Use Assign modulation to choose a source.

God Rays

SettingAvailable valuesWhat it changes
God RaysOn / OffTurns god rays on or off.
Emitter X-10–10Moves the point the light shafts shine from to the left or right. Available when God Rays is on.
Emitter Y-10–10Moves the point the light shafts shine from up or down. Available when God Rays is on.
Emitter Z-20–20Moves the point the light shafts shine from forward or back in the scene. Available when God Rays is on.
Ray Weight0.1–1.4Sets how bright each light shaft is; higher values make the God Rays bolder and more solid. Available when God Rays is on. Use Assign modulation to choose a source.
Ray Decay0.8–0.99Sets how long ray decay remains visible.
Ray Density0.3–1.2Controls how concentrated the visible elements appear.
Ray Exposure0.1–1Sets the overall rendered brightness. Use Assign modulation to choose a source.
Ray Samples12–96Trades visual detail against performance.

Floor

SettingAvailable valuesWhat it changes
Floor Scroll0x–3xSets how fast the checkered floor scrolls beneath the characters; 0 holds it still and music can speed it up. Use Assign modulation to choose a source.
Scroll Direction0°–360°Sets the compass direction, from 0 to 360 degrees, that the checkered floor scrolls toward.
Checker DarkColorSets the checker dark.
Checker LightColorSets the checker light.
Floor Roughness0–1Moves the surface from polished toward matte.
Floor Metalness0–1Moves the surface from non-metallic toward metallic.
Turntable0–1Sets how fast the whole crowd slowly spins around like a turntable; 0 stops the rotation. Use Assign modulation to choose a source.

Atmosphere

SettingAvailable valuesWhat it changes
Fog Density0–0.12Makes the scene fog thinner or denser. Use Assign modulation to choose a source.

Colors

SettingAvailable valuesWhat it changes
TintColorSets the tint.

Audio

SettingAvailable valuesWhat it changes
Master Gain0x–3xSets how strongly the input signal affects master.
Bass Intensity0x–3xSets the visible bass intensity.
Mid Intensity0x–3xSets the visible mid intensity.
High Intensity0x–3xSets the visible high intensity.
Smoothing0.01–0.5Balances immediate audio response against steadier motion.

Animation

SettingAvailable valuesWhat it changes
Time Speed0.2x–2xSets how quickly time changes or moves. Use Assign modulation to choose a source.
Walk Reactivity0x–3xScales how strongly the music drives the characters to walk; they walk when the result passes Walk Threshold and stand still otherwise. Use Assign modulation to choose a source.
Walk Threshold0–0.15Sets the level that must be crossed before walk appears.
Blend Speed1x–20xSets how quickly blend changes or moves.

Camera

SettingAvailable valuesWhat it changes
Mouse OrbitOn / OffTurns mouse orbit on or off.
CinematicOn / OffTurns cinematic on or off.
Auto RotateOn / OffTurns auto rotate on or off.
Rotation Speed0.05x–2xSets how quickly rotation changes or moves.

Some controls appear only after you enable a related mode or style. The settings panel always reflects the options available for the current selection.

Tips for a better audio visualization

  • Assign different bands to structure, motion, and light instead of routing every control to Volume.
  • Try assigning Bass to Exposure, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.