Fireworks
Fireworks is a particle-driven audio-reactive scene in BeamTracer Audio Visualizers, built on WebGPU. Settings, audio modulation, presets, and tips.
Fireworks 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 Fireworks
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
Classic · Golden · Neon Rave · Cosmic · Subtle · Glacier
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 |
|---|---|---|
| Spark Speed | Material | Sets how quickly spark changes or moves. |
| Spark Spread | Material | Controls how far elements separate from the center or from one another. |
| Bloom Strength | Material | Sets the visible bloom strength. |
| Explosion Force | Animation | Sets how fast sparks fly outward when a firework bursts; higher values make bigger, wider explosions, and bass hits can add to it. |
Settings reference
Core
| Setting | Available values | What it changes |
|---|---|---|
| Particle Count | 500–5000 | Sets how many visible elements are drawn. |
Material
| Setting | Available values | What it changes |
|---|---|---|
| Spark Speed | 1–6 | Sets how quickly spark changes or moves. Use Assign modulation to choose a source. |
| Spark Spread | 0.5–3 | Controls how far elements separate from the center or from one another. Use Assign modulation to choose a source. |
| Life Decay | 0.2–1.5 | Sets how long life decay remains visible. |
| Bloom Enabled | On / Off | Turns bloom enabled on or off. |
| Bloom Strength | 0–1 | Sets the visible bloom strength. Use Assign modulation to choose a source. |
| Bloom Radius | 0–1 | Sets the visible bloom radius. |
| Bloom Threshold | 0–1 | Sets the level that must be crossed before bloom appears. |
Colors
| Setting | Available values | What it changes |
|---|---|---|
| Color Theme | RAINBOW, WARM, COOL, NEON, GOLD, COSMIC | Chooses the color theme mode or style. |
| Hue Animation | On / Off | Turns hue animation on or off. |
| Hue Speed | 0.01–1 | Sets how quickly hue changes or moves. |
Audio
| Setting | Available values | What it changes |
|---|---|---|
| Master Gain | 0.5–3 | Sets how strongly the input signal affects master. |
| Bass Intensity | 0–2 | Sets the visible bass intensity. |
| Mid Intensity | 0–2 | Sets the visible mid intensity. |
| High Intensity | 0–2 | Sets the visible high intensity. |
| Smoothing | 0–0.99 | Balances immediate audio response against steadier motion. |
| Auto-Launch On Beat | On / Off | Turns auto-launch on beat on or off. |
| Boom Sound | On / Off | Plays a boom with each burst, in the preview and in videos made with Render Video. |
| Boom Volume | 0–1 | Sets how loud the explosion sound is; available when Boom Sound is on. |
Animation
| Setting | Available values | What it changes |
|---|---|---|
| Explosion Force | 1–6 | Sets how fast sparks fly outward when a firework bursts; higher values make bigger, wider explosions, and bass hits can add to it. Use Assign modulation to choose a source. |
| Hover Duration | 0s–4s | Sets how many seconds the sparks hang in the air after bursting before they start to fall. |
| Hover Friction | 0.9–0.99 | Sets how quickly sparks slow to a stop while hanging in the air; lower values make them stall right at the burst, and higher values let them keep drifting outward before they fall. |
| Gravity | 0.5–5 | Sets the downward pull on moving elements. |
| Rocket Speed | 0.5–3 | Sets how quickly rocket changes or moves. |
| Spawn Multiplier | 0.5–3 | Scales how many sparks a quick mouse movement creates; higher values give denser bursts. Available when Mouse Interaction is on. |
| Pointer Threshold | 0.001–0.1 | Sets the level that must be crossed before pointer appears. |
| Mouse Interaction | On / Off | Turns mouse interaction on or off. |
| Min Spawn Count | 1–20 | Sets how many visible elements are drawn. |
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 Spark Speed, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.