Fluidic Balls
Fluidic Balls is a particle-driven audio-reactive scene in BeamTracer Audio Visualizers. Shape its response in your browser with settings, audio modulation, presets, and tips.
Fluidic Balls is a particle-driven audio-reactive scene in the Particles category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.
Open Fluidic Balls
Launch the visualizer with its matching left-nav entry selected.
Pull the balls to your hand
In this example, Hand is set to Follow: the visualizer moves toward the tracked hand as it crosses the picture. Use the playback controls to pause or replay the motion.
- Switch to Performer, pick Fluidic Balls, and put your camera under it: open the FX Rack, add Visual Source, choose your camera and set its Visualizer to Over.
- Under Hand Tracking, leave Hand on Follow and raise a hand. The balls pour out around it and gather under it on screen; push your hand toward the camera and they swell toward you, pull it back and they shrink away. Hand Strength sets how hard they gather and how quickly they follow.
- Scatter sends them to the other side instead. With no hand in view they swirl on their own (or follow the mouse) again.
Set Hand to Draw Path, then point with one finger and trace a loop in the air (or drag one with the mouse). A thin line shows what you drew, then the balls pour along it, round and round for a closed loop or back and forth along an open stroke, until Path Life runs out. Hold up an open palm for a moment, or double-click, to clear it.
Quick start
- Start the demo track, choose a local audio file, or enable a live input.
- Try a preset or style first, then open the section for the part of the image you want to change.
- On a control with Assign modulation, open the source picker, choose a signal, and watch the slider's live fill.
- Use Reset to Defaults whenever you want to return to the original look.
Presets and styles
Default · Fire Swarm · Ocean Drift · Neon Storm · Zen Flow · Plasma
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 control | Section | What the route changes |
|---|---|---|
| Size Pulse | Material | Sets the visible size pulse. |
| Background Hue Speed | Colors | Sets how quickly background hue changes or moves. |
| Flow Speed | Animation | Sets how quickly flow changes or moves. |
| Spawn Radius | Animation | Sets the visible spawn radius. |
| Curl Size | Animation | Sets the visible curl size. |
| Attraction | Animation | Sets how strongly the particles are drawn toward the cursor when Follow Mouse is on, or toward the center when it is off; at 0 they ignore the pull. |
| Vortex | Animation | Controls the strength of the swirling motion. |
Settings reference
Core
| Setting | Available values | What it changes |
|---|---|---|
| Particle Count | 4K, 8K, 16K, 32K, 65K, 131K, 252K | Chooses the particle count mode or style. |
| Die Speed | 0.0005–0.02 | Sets how quickly die changes or moves. |
| Emitter Distance | 0–1 | Sets the spacing between visible elements. |
| Emitter Speed | -50–50 | Sets how quickly emitter changes or moves. |
Material
| Setting | Available values | What it changes |
|---|---|---|
| Particle Size | 4–100 | Sets the visible particle size. |
| Size Pulse | 0–2 | Sets the visible size pulse. Use Assign modulation to choose a source. |
| Show Floor | On / Off | Shows or hides floor. |
| Floor Opacity | 0–1 | Sets how transparent the floor appears. |
| Fog Density | 0–0.01 | Makes the scene fog thinner or denser. |
Colors
| Setting | Available values | What it changes |
|---|---|---|
| Color 1 | Color | Sets the color 1. |
| Color 1 Auto Hue | On / Off | Turns color 1 auto hue on or off. |
| Color 1 Hue Speed | 0.01–1 | Sets how quickly color 1 hue changes or moves. |
| Color 2 | Color | Sets the color 2. |
| Color 2 Auto Hue | On / Off | Turns color 2 auto hue on or off. |
| Color 2 Hue Speed | 0.01–1 | Sets how quickly color 2 hue changes or moves. |
| Background | Color | Sets the background. |
| Background Auto Hue | On / Off | Turns background auto hue on or off. |
| Background Hue Speed | 0.01–1 | Sets how quickly background hue changes or moves. Use Assign modulation to choose a source. |
| Rainbow Mode | On / Off | Turns rainbow mode on or off. |
| Rainbow Speed | 0.1–2 | Sets how quickly rainbow changes or moves. |
Audio
| Setting | Available values | What it changes |
|---|---|---|
| Master Gain | 0x–3x | Sets how strongly the input signal affects master. |
| Bass Intensity | 0x–3x | Sets the visible bass intensity. |
| Mid Intensity | 0x–3x | Sets the visible mid intensity. |
| High Intensity | 0x–3x | Sets the visible high intensity. |
| Smoothing | 0–0.98 | Balances immediate audio response against steadier motion. |
Hand Tracking
| Setting | Available values | What it changes |
|---|---|---|
| Hand | FOLLOW, SCATTER, DRAW PATH, OFF | In Performer with your camera on, FOLLOW draws the balls to your hand, SCATTER makes them flee, and DRAW PATH lets you point and draw a curve in the air (or drag with the mouse) for the balls to pour along; with no hand in view they swirl on their own. |
| Hand Strength | 0–3 | How hard your hand, or the drawn path, pulls or pushes the balls. |
| Hand Depth | 0–3 | How far the balls move toward you or away as you hold your hand nearer the camera than your face, or farther back; with DRAW PATH, how deep the drawn curve runs. 0 keeps the balls on one plane. |
| Path Speed | 0–1 | How fast the balls pour along the drawn path. |
| Path Life | 2–30 | How long a drawn stroke stays before it fades; holding up an open palm for a moment clears it. |
| Show Path | ON, OFF | Draws the path itself as a trail of dots while you draw it, larger where it comes toward you, then fades it out as the balls take it over. |
Animation
| Setting | Available values | What it changes |
|---|---|---|
| Flow Speed | 0–2 | Sets how quickly flow changes or moves. Use Assign modulation to choose a source. |
| Spawn Radius | 0.1–1.5 | Sets the visible spawn radius. Use Assign modulation to choose a source. |
| Curl Size | 0.0001–0.003 | Sets the visible curl size. Use Assign modulation to choose a source. |
| Turbulence | 0–5 | Sets how irregular or unpredictable the turbulence appears. |
| Follow Mouse | On / Off | Turns follow mouse on or off. |
| Attraction | 0–2 | Sets how strongly the particles are drawn toward the cursor when Follow Mouse is on, or toward the center when it is off; at 0 they ignore the pull. Use Assign modulation to choose a source. |
| Gravity | -2–2 | Sets the downward pull on moving elements. |
| Vortex | -2–2 | Controls the strength of the swirling motion. Use Assign modulation to choose a source. |
Camera
| Setting | Available values | What it changes |
|---|---|---|
| Auto-Orbit Camera | On / Off | Turns auto-orbit camera on or off. |
| Orbit Speed | 0.1–2 | Sets how quickly orbit changes or moves. |
| Orbit Controls | On / Off | Turns orbit controls on or off. |
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
- Let bass control particle scale or spread, while highs drive sparkle or trail detail for a clearer sense of depth.
- Try assigning Bass to Size Pulse, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.