Fast Venue

L R Band Open Air

Stage width m Audience length m Audience width m

Preview only - Create applies it

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Fast Venue's own project format isn't available yet, so there is no way to save the current scene to disk. Continue to discard everything and start fresh.

CLF model imported

GLL model imported

General settings

Grid & floor

World size m Cell size m

20 cells per side

Units

Meters (m) Feet (ft)

Theme

Dark Light

Speaker style

Wireframe (default) Cabinet (dark wood) Ray-X (semi-transparent pewter)

Cabinet renders speakers as solid dark Duratex-style boxes; Ray-X renders them in translucent metallic lead gray. Both styles keep the wireframe overlay tinted with the speaker's accent color so identification stays easy.

SPL color scale

Min dB Max dB

Painted on every audience triangle when the master On is active. Range applies live; bands clip below / above the gamut.

Frequency & bandwidth

Active 1000 Hz

Bandwidth 1/3 oct

Sum mode Power

Live values — change them from the top bar (1000 Hz · 1/3 oct) or F4 for phase/power. dBA / dBZ integrate all 31 ISO bands. 1 Oct averages 3 bands, 2 Oct averages 5.

Frequency Response panel

SPL axis 40–120 dB

Phase axis −180° – +180°

Freq axis 20 Hz – 20 kHz · log

Open with F or F5. One trace per mic. Magnitude solid, phase dashed. Click + drag the head to reposition; use the dock button ⬓ to pin it to the bottom of the viewport.

Simulation resolution

Sample area —

Lower = more samples per audience (slower, finer heat map). Change in Simulation → Resolution… or let Auto pick by project size.

Optional tools

Enable Helper panel (contextual tips, H toggle) Show Video Capturer (Project menu + toolbar)

Both ship OFF by default. Flip ON + reload to fully wire the underlying iframe / detector. Hiding takes effect immediately (no reload required).

Air absorption (ISO 9613-1)

Apply atmospheric attenuation to SPL

Temperature (°C) Relative humidity (%) Pressure (kPa)

≈ 0.00 dB / 100 m at 10 kHz

Adds frequency-dependent HF rolloff (≈6 dB / 100 m at 10 kHz, sea-level / 20 °C / 50 % RH). Pro tools (EASE Focus, MAPP, Soundvision) apply this by default. Disable to compare against the bare distance-only model.

Google Maps API key

Key (Static Maps) not set

Optional. When set, the Shape Drawer's Image tool gains a Fetch from Google Maps button that pulls a satellite tile at any lat / lon. Free tier: $200/mo credit covers ≈100k fetches. Key persists in this browser only (localStorage). Restrict the key to localhost:5173/* + your Azure URL. See docs/proposals/google-maps-integration-report.md.

UI Zoom

Show floating zoom widget

Zoom Level 100%

Scales the User Interface (text, menus, sidebars, and dialog panels). The 3D view remains at native resolution.

Privacy

Send a usage summary to the Danley team on close

On close, Fast Venue emails the team an aggregate summary — counts of speakers / audiences / mics, files imported, simulations run, session length and machine codename. Never your project or any file contents. Opt-out analytics; turn it off here anytime.

imgbb API key — bug-report screenshots

Free key at api.imgbb.com. Lets the “Report a bug” screenshot travel as a hosted link — Web3Forms' free tier can't send file attachments. Stored in this browser only.

Simplify mesh (QEM)

Current — tris

Target detail %

After — tris

Uses Quadric Error Metrics. Feature edges are preserved first; flat regions collapse first. Re-import the original file to undo.

Detect surfaces from lines

Reconstruct faces from the line endpoints of a wireframe import. Pick the kind of surface you're looking for.

Floor — horizontal (tilt ≤ 5°) Inclined — galleries, balconies (5–30°) Walls — vertical (60–89°) All quads — speculative, any tilt

Minimum surface m² Split T-junctions (recommended for architectural DXF)

—

Scale by max extents

Width (X) m Depth (Y) m Height (Z) m

Scale factor

Transform Geometry

Move metres · Δ per apply

X m

Y m

Z m

Rotate degrees · around centroid

Yaw Z °

Pitch X °

Roll Y °

SPL limits

Simulation box metres · world coords

Min X m

Max X m

Min Y m

Max Y m

Min Z m

Max Z m

Only what falls inside this box is simulated — imported mesh and audience areas alike. Outside cells paint neutral gray.

Movies

In this project 0

Play Movie

Movies in this project 0

No movies recorded in this project yet.
Use Record Movie… to capture one — it will save inside the .fastvenue next to the geometry it depends on.

Training · Challenges

Learn Fast Venue by playing. Each challenge is timed — beat par for ★★★.

Mago — Speaker Trainer ✨

Three optimizers race on the same physics — best average SPL over the first audience. Genes: position (x,y,z), horizontal & vertical aim.

🎬 Watch the hunt — spawn around the speaker, ± m, then migrate to the audience

Population Generations Positions (seed) Horizontal rots Vertical rots Speed (gen/s)

Mutation ranges

Position ±m Height Z ±m Horizontal ±° Vertical ±° Mutation rate

Generation—

Best fitness—

Mean fitness—

Champion—

Set parameters, then Start.

Simulate imported mesh

None — just place the geometry i All mesh i All mesh excluding roof i Floor i Floor + walls i Inclined surfaces i Bleachers — auto seating ✨ i By layer i

Excluir caras chicas (slivers)

0.10 m

Inclined surfaces is a handy trick: imported listening venues commonly model their seating as sloped faces. Picking it isolates those raked, grandstand-like surfaces for the simulation.

Volumetric Field

Show field Live — follows top-bar Hz + Power/Phase

A 3D grid of sample points floating in the air. Each voxel is coloured by the SPL it would receive. Independent from audience areas — works with just one speaker. Always visible: when On is off (or no speakers), particles render as faint white dots for spatial reference.

Quick

20 m

30³ voxels

0 m

5 m

Bounds (m)

Resolution (voxels)

Display mode

Iso (level surface) All (gaussian cloud) Slice (cross-section)

Threshold dB ± delta dB

Cost tiers (Reynolds-class, 119 speakers):

60 fps drag: ≤ 75 k voxels × 1 band
Settle (~tenths sec): ≤ 18 k voxels × 31 bands
Pre-render only: > 75 k × 31 bands

— voxels — ops ≈ — ms —

Polar Balloon

Show balloon

Eval distance (m)

Visual extent (m) Resolution Clip rear Source filter

Origin (m) X Y Z

—

The balloon is the directivity pattern measured at Eval distance from the origin. Lobes bulge out, nulls collapse toward the centre. Colours follow the SPL scale from General Config.

Project Info

Project name:

Project Nº:

Client:

Address:

Created by:

Date:

Comments:

Esc to close · Ctrl+Enter to save

Export to .danleyskp

Choose what to include in the exported file.

All project Only geometry Only speakers Only audience areas All but geometry All but speakers All but audience areas

Export to .dae (Collada)

Choose what to include in the exported Collada file.

All project Only geometry Only speakers Only audience areas All but geometry All but speakers All but audience areas

Export to .dxf

Choose what to include in the exported DXF file.

All project Only geometry Only speakers Only audience areas All but geometry All but speakers All but audience areas

Resolution

Balance detail against project size. SPL cost scales with audience area × active speakers — coarser cells keep big stadium-class projects interactive.

Manual Automatic HD Automatic Normal Automatic Fast Automatic Super Fast (power sum, max speed)

Cell area m²

—

Scale by known distance

Current distance — units

Real distance m

Factor: —

Live preview — mesh resizes while you type. Apply commits, Cancel reverts.

Image overlay

Real width

m

Actual width of the area in the image (stadium pitch ~105 m). Lands centred on the origin. Skip the picker with 🛰️ Satellite or 🌐 Google Maps.

Do to All Audiences

Nudge height (Z) — all audiences

m

Nudge incline (angle) — all audiences

°

Transparency (all audiences)

72%

Grid & floor

Units

Theme

Speaker style

SPL color scale

Frequency & bandwidth

Frequency Response panel

Simulation resolution

Optional tools

Air absorption (ISO 9613-1)

Google Maps API key

UI Zoom

Privacy

What are we building today?

Learn Fast Venue

Communicate

Sub Arrays