Simulation
Fluid and Particles
Fluid and Particles is a responsive simulated scene in BeamTracer Audio Visualizers, built on WebGL. Settings, audio modulation, presets, and tips.
Fluid and Particles is a responsive simulated scene in the Simulation category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.
Open Fluid and Particles
Launch the visualizer with its matching left-nav entry selected.
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
Spectrum Mirror · Solar Corona · Chaos Burst · Bass Floor · Frequency Storm · Liquid Dreams · Splat Symphony · Radial Chaos · Mirror Mayhem
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 |
|---|---|---|
| Force Radius | Material | Sets the visible force radius. |
| Dye Radius | Material | Sets the visible dye radius. |
| Velocity Damping | Material | Balances immediate audio response against steadier motion. |
| Particle Color Scale | Colors | Sets the visual particle color scale. |
| Splat Force | Audio | Controls splat force; higher values increase the effect and lower values reduce it. |
| Splat Radius | Audio | Sets the visible splat radius. |
| Spectrum Force | Audio | Controls spectrum force; higher values increase the effect and lower values reduce it. |
| Circular Force | Audio | Controls circular force; higher values increase the effect and lower values reduce it. |
Settings reference
Core
| Setting | Available values | What it changes |
|---|---|---|
| Quality Preset | ULTRA LOW, LOW, MEDIUM, HIGH, ULTRA HIGH | Chooses the quality preset mode or style. |
| Cell Size | 8–64 | Sets the visible cell size. |
| Solver Iterations | 1–50 | Trades visual detail against performance. |
| Particle Count | 16K, 64K, 256K, 1M | Chooses the particle count mode or style. |
| Particle Drag | 0–2 | Controls particle drag; higher values increase the effect and lower values reduce it. |
| Show Particles | On / Off | Shows or hides particles. |
| Show Fluid | On / Off | Shows or hides fluid. |
Material
| Setting | Available values | What it changes |
|---|---|---|
| Dye Decay R | 0.9–1 | Sets how long dye decay r remains visible. |
| Dye Decay G | 0.9–1 | Sets how long dye decay g remains visible. |
| Dye Decay B | 0.9–1 | Sets how long dye decay b remains visible. |
| Force Radius | 0.005–0.05 | Sets the visible force radius. Use Assign modulation to choose a source. |
| Dye Radius | 0.005–0.08 | Sets the visible dye radius. Use Assign modulation to choose a source. |
| Velocity Damping | 0.95–1 | Balances immediate audio response against steadier motion. Use Assign modulation to choose a source. |
| Taper Factor | 0–1 | Controls how much the shape narrows along its length. |
Colors
| Setting | Available values | What it changes |
|---|---|---|
| Particle Color Scale | 1–10 | Sets the visual particle color scale. Use Assign modulation to choose a source. |
| Dye Cold Color | Color | Sets the dye cold color. |
| Dye Hot Color | Color | Sets the dye hot color. |
| Particle Slow Color | Color | Sets the particle slow color. |
| Particle Fast Color | Color | Sets the particle fast color. |
Audio
| Setting | Available values | What it changes |
|---|---|---|
| Master Gain | 0–3 | Sets how strongly the input signal affects master. |
| Bass Intensity | 0–3 | Sets the visible bass intensity. |
| Mid Intensity | 0–3 | Sets the visible mid intensity. |
| High Intensity | 0–3 | Sets the visible high intensity. |
| Smoothing | 0.02–0.5 | Balances immediate audio response against steadier motion. |
| Enable Audio Splats | On / Off | Turns audio splats on or off. |
| Splat Force | 500–10000 | Controls splat force; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source. |
| Splat Radius | 0.005–0.1 | Sets the visible splat radius. Use Assign modulation to choose a source. |
| Enable Spectrum Mode | On / Off | Turns spectrum mode on or off. |
| Spectrum Force | 0.1–2 | Controls spectrum force; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source. |
| Spectrum Smoothing | 0–0.95 | Balances immediate audio response against steadier motion. |
| Enable Circular Spectrum | On / Off | Turns circular spectrum on or off. |
| Circular Force | 0.1–3 | Controls circular force; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source. |
Animation
| Setting | Available values | What it changes |
|---|---|---|
| Spectrum Bars | 16–256 | Controls spectrum bars; higher values increase the effect and lower values reduce it. |
| Spectrum Position | TOP, BOTTOM, CENTER, MIRROR | Chooses the spectrum position mode or style. |
| Inject Dye | On / Off | Turns inject dye on or off. |
| Mirror Angle | 0–360 | Sets the mirror angle of the visible composition. |
| Circular Radius | 0.1–0.8 | Sets the visible circular radius. |
| Circular Rotation | 0–360 | Sets the circular rotation of the visible composition. |
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
- Start with moderate audio strength. Large gain changes can overwhelm the motion before you can see what each band contributes.
- Try assigning Bass to Force Radius, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.