Fire & EMS training
AAR Scene Builder
Rebuild a fireground minutes after the call. Draw the structure fast on a 2D sketch; a projector pane shows the corrected 3D scene in real time. Drop in trucks, hose lines, victims, search areas — then replay ingress and egress while the crew is still on shift.
- License
- Apache 2.0
- Platform
- Windows portable EXE
- Version
- v1.0.3
- Price
- Free Apache 2.0
What it is
Better than the whiteboard.
Whiteboard AAR is the status quo — a sketch nobody can read an hour later. AAR Scene Builder turns the same fast sketch into a 3D scene the whole crew can stand around and argue over — on the projector, while the call is still fresh.
01
Draw fast, project clean
Sketch walls at classroom speed on the 2D canvas. The projector pane renders a straightened 3D / isometric scene instantly. Sketch on one monitor, corrected scene on the other.
02
The tactical objects you need
Trucks, roads, hydrants, hose lines, nozzles, victims, fire effects, vents, search areas, command points. Place them, move them, rotate them. Auto ABCD side labels.
03
Replay ingress and egress
Sketch the path the crew took in and out, then replay it at a controllable speed. Multi-level scene support for multi-story structures. Save the scenario for the next drill.
On the ground
Three ways it gets used.
After the call
After-action review
Rebuild the scene minutes after a real call while the crew is still on shift — talk through ingress, search, hose lines, victim positions.
In the classroom
Live teaching
The instructor draws walls; the projector shows the cleaned 3D scene; the class discusses tactics against something everyone can see.
Before the drill
Scenario design
Pre-build a structure, place trucks and victims, save the scenario — a repeatable drill ready for the next training session.
Who it's for
If this sounds like you, it will fit.
- Fire-training officers and fire-academy instructors who run after-action reviews and want better than a whiteboard sketch.
- Emergency-response training program directors building a repeatable library of drill scenarios.
- Anyone running a live AAR who needs the scene rebuilt while the crew is still on shift, not reconstructed from memory next week.
Plainly
What it does, and what it doesn't.
What it does
- Turns a 2D sketch into a 3D / isometric projected scene
- Places and edits tactical objects on the scene
- Supports multi-level scenes for multi-story structures
- Replays ingress and egress paths at controllable speed
- Runs a projector mode for live teaching
- Ships as a portable Windows EXE — no install
What it doesn't
- It is not VR or AR — it is 2D-sketch plus 3D-isometric, not a headset
- It is not a CAD modeler — the geometry is approximate, sketched from memory at classroom speed
- It is not a tactical simulator — no AI, no damage model, no scoring
- It is not a fireground records system — scene files are local JSON on your machine, not a department system of record
- It is not multi-user real-time collaboration — one instructor per session
Get it
The app is free. Sponsor it if it helps.
The whole application is Apache 2.0 — genuinely free to use, modify, and run across your department. If it earns a spot in your training program and you want to keep development moving, sponsorship is the channel.
The application
Free
The full app — source and a portable Windows EXE.
- The complete application, no feature gate
- Portable Windows EXE — no install needed
- Full source, Apache 2.0 — modify it freely
- Use it across your whole department
No account. The code is genuinely free.
Keep development moving
Sponsor
If the app earns its place in your training, sponsorship funds the next features.
- One-time or recurring — you set the amount
- Routed through GitHub Sponsors
- Sponsorship does not buy private features — the app stays free for everyone
- Departments can sponsor on behalf of an academy budget
Optional, not required to use the app.
Rebuild the scene before the crew goes home.
Download the portable EXE, open the projector pane, and run a real after-action review on it. The app is free; the support is there if your department wants it.