Geometric Cave

Geometric Cave is an ambient full-canvas background in BeamTracer Audio Visualizers, built on WebGPU. Settings, audio modulation, presets, and tips.

Default demo track · live audio-reactive settings

Geometric Cave is an ambient full-canvas background in the Backgrounds category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.

Open Geometric Cave

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

Performance · Prismatic · Neon Pulse · Smoked Glass · Aurora · Monolith

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
Dispersion	Physical Glass	Controls dispersion; higher values increase the effect and lower values reduce it.
Iridescence	Physical Glass	Controls the view-dependent rainbow color shift on the surface.
Emissive Swell	Physical Glass	Controls emissive swell; higher values increase the effect and lower values reduce it.
Fog Density	Atmosphere	Makes the scene fog thinner or denser.
Bass Light Gain	Accents	Sets how strongly the input signal affects bass light.
Mid Light Gain	Accents	Sets how strongly the input signal affects mid light.
High Light Gain	Accents	Sets how strongly the input signal affects high light.
Mids → Accent Hue	Audio	Moves the color around the color spectrum.

Settings reference

Glass Blur

Setting	Available values	What it changes
Enable Blur	On / Off	Turns blur on or off.
Blur	1px–50px	Softens edges and spreads nearby light or color.

Render

Setting	Available values	What it changes
Resolution	0.35x–1x	Trades visual detail against performance.
Exposure	0.5–2	Sets the overall rendered brightness.

Cave

Setting	Available values	What it changes
Cave Rows	16–56	Controls cave rows; higher values increase the effect and lower values reduce it.
Peak Height	1x–5x	Sets the visible peak height.
Block Scale	0.5–2	Sets the visual block scale.
Row Spacing	2–8	Sets the spacing between visible elements.
Field Width	16–64	Sets the visible field width.
Opening Height	8–20	Sets the visible opening height.

Physical Glass

Setting	Available values	What it changes
Transmission	0.96–1	Sets how much light appears to pass through the material.
Thickness	0–8	Sets the visible thickness.
IOR	1–2.33	Changes how strongly the material bends light.
Dispersion	0–4	Controls dispersion; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source.
Opacity	0.2–1	Sets the overall transparency.
Roughness	0–1	Moves the surface from polished toward matte.
Clearcoat	0–0.05	Adds or reduces a glossy top layer on the surface.
Coat Roughness	0–1	Moves the surface from polished toward matte.
Environment	0–3	Controls environment; higher values increase the effect and lower values reduce it.
Iridescence	0–1	Controls the view-dependent rainbow color shift on the surface. Use Assign modulation to choose a source.
Emissive Swell	0–2	Controls emissive swell; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source.

Color

Setting	Available values	What it changes
Base Hue	0–1	Moves the color around the color spectrum.
Hue Spread	0–0.6	Controls how widely the colors vary around the color spectrum.
Accent Hue	0–1	Moves the color around the color spectrum.
Hue Animation	On / Off	Turns hue animation on or off.
Hue Speed	0.01–1	Sets how quickly hue changes or moves.

Atmosphere

Setting	Available values	What it changes
Bloom	0–3	Sets the visible strength of bloom.
Bloom Radius	0–1	Sets the visible bloom radius.
Bloom Threshold	0–1	Sets the level that must be crossed before bloom appears.
Fog Density	0–0.06	Makes the scene fog thinner or denser. Use Assign modulation to choose a source.
Vignette	0–2	Controls vignette; higher values increase the effect and lower values reduce it.
Film Grain	0–1	Controls film grain; higher values increase the effect and lower values reduce it.

Accents

Setting	Available values	What it changes
Idle Hold	0.4s–2.8s	Sets how long idle hold remains visible.
Light Count	3–9	Sets how many visible elements are drawn.
Light Intensity	0–60	Sets the visible light intensity.
Emitter Size	4–20	Sets the visible emitter size.
Light Fade Time	0.02s–1.5s	Sets how long light fade remains visible.
Bass Light Gain	0x–3x	Sets how strongly the input signal affects bass light. Use Assign modulation to choose a source.
Mid Light Gain	0x–3x	Sets how strongly the input signal affects mid light. Use Assign modulation to choose a source.
High Light Gain	0x–3x	Sets how strongly the input signal affects high light. Use Assign modulation to choose a source.
Random Selection	On / Off	Turns random selection on or off.

Audio

Setting	Available values	What it changes
Master Gain	0x–3x	Sets how strongly the input signal affects master.
Geometry Reactivity	0x–2x	Controls geometry reactivity; higher values increase the effect and lower values reduce it.
Light Reactivity	0x–2x	Controls light reactivity; higher values increase the effect and lower values reduce it.
Bass Gain	0x–3x	Sets how strongly the input signal affects bass.
Bass Gate	0–0.8	Controls bass gate; higher values increase the effect and lower values reduce it.
Mids Gain	0x–3x	Sets how strongly the input signal affects mids.
Mids Gate	0–0.8	Controls mids gate; higher values increase the effect and lower values reduce it.
Highs Gain	0x–3x	Sets how strongly the input signal affects highs.
Highs Gate	0–0.8	Controls highs gate; higher values increase the effect and lower values reduce it.
Smoothing	0.02–0.8	Balances immediate audio response against steadier motion.
Bass → Dispersion	0–3	Controls bass → dispersion; higher values increase the effect and lower values reduce it.
Bass → Light Swell	0–3	Controls bass → light swell; higher values increase the effect and lower values reduce it.
Mids → Accent Hue	0–0.5	Moves the color around the color spectrum. Use Assign modulation to choose a source.
Highs → Shimmer	0–1	Controls highs → shimmer; higher values increase the effect and lower values reduce it.
Volume → Fog	0–0.06	Controls volume → fog; higher values increase the effect and lower values reduce it.

Camera

Setting	Available values	What it changes
Speed	0.1x–3x	Sets how quickly speed changes or moves.
Glide Speed	0.2–6	Sets how quickly glide changes or moves.
Camera FOV	35°–80°	Widens or narrows the camera view.
Look Pitch	-75°–75°	Controls look pitch; higher values increase the effect and lower values reduce it.
Look Yaw	-75°–75°	Controls look yaw; higher values increase the effect and lower values reduce it.
Drag To Look	On / Off	Turns drag to look on or off.
Drag Sensitivity	0–2.5	Sets how strongly the input signal affects drag.
Travel Angle	-180°–180°	Sets the travel angle of the visible composition.
Auto Rotate	On / Off	Turns auto rotate on or off.
Rotation Speed	0–1	Sets 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

Use lower modulation amounts than you would for a foreground effect so the background supports the mix instead of competing with it.
Try assigning Bass to Dispersion, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.