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Revit plugin

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Walk your Revit model at eye level.

A third-person walkthrough with element data, measurement, BCF markups and route timing — running inside Revit, with nothing exported.

Revit 2024–2027 BCF 2.1 and Excel No export needed

Overview

Inside the model, not above it.

A separate real-time window opens beside Revit, the model is extracted once, and you walk it in third person — stairs, thresholds and doors included. Click anything under the crosshair to read its category, family, type, level and Element ID, then select that element back in Revit.

It is a review tool, not a renderer. What you see while walking becomes work: dimensions measured between points or elements, markups typed against the element in front of you and saved inside the model, snapshots to the desktop, and issues exported to Excel or BCF 2.1 — and read back in.

Element information panel showing category, family, type, level and Element ID for a door under the crosshair
The crosshair reads category, family, type, level and Element ID — including elements inside linked models.

Capabilities

What it does

Eye-level walkthrough

Third-person navigation in a dedicated window with a fixed 55° vertical field of view. Collision, gravity and step-up run against the extracted model geometry.

Element information on click

The crosshair reads category, family, type, level, Element ID, Mark and Comments, including elements inside linked models, and names the source document.

Measurement while walking

Five measurement types — point to point, horizontal, vertical, X/Y/Z and element distance — placed by clicking in the scene, labelled in millimetres or feet and inches.

Markups saved in the model

Place an issue, comment, question, warning or note on a point or an element, with type, priority, status, title and comment. Markups are stored in the Revit file.

BCF and Excel exchange

Export markups as BCF 2.1 with viewpoints and snapshots, in shared, project base point or internal coordinates — and import the coordinator's issues back, matched to elements.

Route timing

Draw a route, then have the avatar run it while the plug-in records travel time, distance, average speed and every modelled element the route passes through.

Start inside a room

Pick any placed room from a filterable list and the walkthrough opens with the avatar standing inside it, at the most open point of the room rather than at the tag.

See through what hides

Draw walls, floors, ceilings, doors or windows as see-through, so services above a ceiling are visible without hiding the ceiling or touching the Revit view.

The ribbon

Six tools, one walkthrough.

Avatar installs as its own ribbon panel. Walk 3D is where you spend the time; the rest either start a walkthrough somewhere specific, or do something with what you found.

Walk 3D

Opens a dedicated real-time window. You choose how much model to extract — 30 m, 60 m or the whole model — and where to start, by clicking a face in a 3D view or a floor in a plan. Gives you navigation, element data, measurements, markups and snapshots. Neither the document nor the current view is modified.

Markups

A window listing every markup saved in the model, with ID, type, priority, status, title, comment, element and date. From here you can open a 3D view on a markup's saved viewpoint, export to Excel, export the ticked markups as BCF 2.1, or import issues back from the coordinator.

Escape Simulation

Route management and simulation history. Build a route from selected Revit lines or by picking corners in a plan, then run it. Produces a report with distance, travel time, average speed and every modelled element the route passes through, saved in the model and exportable to Excel.

Room Finder

Lists every placed room with number, name, level, area and ID, filterable as you type. Starts the walkthrough with the avatar already standing inside the chosen room — at the most open point of it, not at the room tag.

X-Ray

Draw walls, floors, ceilings, doors and windows as see-through inside the walkthrough, so services above a ceiling are visible without hiding the ceiling. Applied immediately, even while the window is open. Nothing in the Revit view or model changes.

Settings

Choose between the two supplied characters, Leon and Claire, set sky, clouds and rain, and decide where snapshots are saved and in what format. The character applies next time Walk 3D opens; the environment applies straight away.

Escape Simulation

Time a route, and see what it passes through.

Draw a route with Revit lines or by picking points in a plan, then have the avatar run it. The plug-in records travel time on a monotonic stopwatch, route distance, average speed, and every modelled element the body passes through — with Element ID, category, family, type, time and duration.

The report is saved inside the Revit file and exports to Excel.

What this is not Escape Simulation measures and times a route you have drawn. It does not find routes, judge them, or assess anything to do with fire or life safety. There is no occupant load, no pre-movement time, no door operation, no queueing, and no smoke or visibility model. The travel time is the avatar's, at one fixed run speed. It is a modelling aid, not an evacuation analysis, and it is not a check against any building regulation or standard.
Obstacles are recorded, never blocking A wall on the route becomes a recorded crossing, not a dead end. That is deliberate — it means the tool can tell you something is in the way of the line as drawn, but it cannot tell you a route is impassable.
Escape simulation running, with elapsed time, distance, speed and recorded crossings on screen
A run in progress: elapsed time, distance covered, speed and recorded crossings.
Escape simulation report with travel time, average speed and the list of elements the route passes through
The report: distance, travel time, average speed, and the elements the route passes through.

Controls

Keyboard and mouse.

If you have ever played a first-person game, you already know most of this. The legend stays on screen until you dismiss it.

Walking up a stair inside a Revit model, showing collision against the model geometry
Collision runs against the real model geometry, so stairs work as stairs.
InputAction
W A S DMove — A and D steer, and the camera follows the turn
ShiftRun
MouseLook around
WheelCamera distance
Left clickElement information
SpaceOpen or close the door in front of you
1 · 2 · 3Navigate · Measurement · Markup
GGhost mode — pass through geometry
Q · EFly down or up, in ghost mode
HHide or show the avatar
XX-Ray on or off
M · NMini-map — zoom, then off · mini-map with north up
F8Save a snapshot of the scene
RRecentre the camera behind the avatar
TabRelease or recapture the cursor
EscCancel the measurement, return to navigation, then exit

How it works

From a plan view to a recorded issue.

Open a view

Start from a 3D view, floor plan, ceiling plan, structural plan or area plan, in a project rather than the family editor.

Choose how much to load

Fast at 30 m, Recommended at 60 m, or the whole model. Geometry is extracted once, and the radius starts from where you place the avatar.

Place the avatar

Click a face in 3D or a floor in plan — or skip the question by picking a room in Room Finder, or starting an escape simulation.

Walk and inspect

WASD to move, mouse to look, click for element information, Space to open a door, X for X-Ray, M for the mini-map.

Record what you find

Switch to Measurement or Markup with the 2 and 3 keys, or press F8 for a snapshot of the scene.

Send it on

Save markups in the model, then export to Excel or BCF 2.1 — and import the coordinator's issues back the same way.

Choosing how much of the model to load before the walkthrough opens
Step 2 — how much of the model to extract before the window opens.
Creating a markup on a door, with type, priority, status, title and comment
Step 5 — a markup placed on the element in front of you.
List of markups saved in the Revit model, with Excel and BCF export buttons
Step 6 — every markup saved in the model, ready for Excel or BCF.

In the software

A closer look

Vertical and horizontal dimensions measured inside a room during a walkthrough
Measurement mode: live dimensions placed by clicking in the scene.
The Escape Simulation window showing a route drawn on a floor plan
Escape Simulation: a route drawn on a floor plan, ready to run.
Room Finder listing the placed rooms in the model
Room Finder lists the placed rooms and drops you inside the one you pick.

Benefits

What changes day to day

  • Review the model the way it will be occupied, not the way it is drawn.
  • No export, no scene conversion, no second file to keep in step with the model.
  • Issues are captured where they are noticed, with the element already attached.
  • Markups stay inside the Revit file, so they travel with a copy sent to a colleague.
  • Round-trips with BIMcollab, Navisworks and Revit through BCF 2.1.
  • Walk 3D opens read-only — the document and the current view are never modified.

Specification

The facts

Revit versions
2024 · 2025 · 2026 · 2027
Environment
Project documents only, from a 3D view or a floor, ceiling, structural or area plan
Rendering
WPF 3D, part of the .NET framework. No external graphics libraries are loaded into the Revit process.
Document changes
Walk 3D, Room Finder and X-Ray open read-only. Markups, routes and simulation results are written to the file only when you save them.
Linked models
Included in geometry, collision, element information and route results, with the source document named
Scene extraction
Once, at open: 30 m, 60 m or the whole model. Typically a few seconds. The scene is a snapshot — edits made while the window is open are not picked up.
Collision
Runs against the extracted triangles. Glass is not drawn but still collides. Step-up to 30 cm generally, 58 cm on recognised stairs.
Characters
Two supplied characters, Leon and Claire, built in code — no asset downloads and no third-party assets
Measurement
Five types, in millimetres and metres or in feet and inches, following the project
Export formats
Excel for markups and route reports · BCF 2.1 export and import · review session files · PNG or JPG snapshots
BCF coordinates
Shared coordinates, project base point or internal, chosen per export and remembered

Straight answers

Where the edges are.

Every tool has a shape. Knowing Avatar's before you buy it is worth more to you than an adjective.

It is not a rendering engine

The scene is drawn with WPF 3D: flat-shaded surfaces, a sky, clouds and a contact shadow. No reflections, no PBR materials, no scene textures, no cast shadows from the avatar. The two supplied characters are built in code rather than imported, so they read as clear figures rather than photoreal ones. For a marketing image, use a rendering package — Avatar is for judging a model, not presenting one.

The scene is a snapshot

Geometry is extracted once, when the window opens. Edit the model in Revit while Walk 3D is running and the window will not notice. Close it and open it again.

Markups persist, measurements do not

Markups are written into the Revit file and stay there. Measurements are held in the session — export a snapshot or a review file before you leave.

The environment is fixed

Daylight is set to early afternoon and project light fittings are not simulated. Sky, clouds and rain are switches; time of day is not a control, and this is not a daylight study.

X-Ray covers five categories

Walls, floors, ceilings, doors and windows. They are the things that hide something in a building.

Rooms must be placed and enclosed

Room Finder lists placed, enclosed rooms. An unplaced or unbounded room has no interior point to stand in, so it is left out.

Pricing

Avatar licences

Annual, per named seat, two devices each. Every plan is the complete product — the tiers differ only in how many people may use it.

All prices exclude VAT. Any tax that applies where you are is calculated and shown at checkout.

Online checkout is not open yet. Licences are arranged by email — info@neosphyr.com.
PlanSeatsPer year, excl. VAT
Individual1 user£99
Multi User3 users£259
Business10 users£695
Corporate25 users£1,250
Free trial14 days. Every feature is on and there is no volume limit — only the fourteen days.

Download

Get the installer

Version 1.0.5, signed, free to download. One installer covers Revit 2024, 2025, 2026 and 2027 — it detects what you have and ticks those versions for you.

You will need a licence key to use it, and a 14-day trial key is free. System requirements · Ask for a trial key

Avatar

Revit 2024 · 2025 · 2026 · 2027 — Windows

1.0.5·70.7 MB·MSI·signed

Download

Questions

Frequently asked

Is Escape Simulation a fire or evacuation analysis?

No. It times and measures a route you have drawn, and records the modelled elements that route passes through. There is no occupant load, no pre-movement time, no queueing, and no smoke or visibility model, and it checks nothing against any regulation or standard. Treat it as a modelling aid.

Does it change my model?

Walking, Room Finder and X-Ray are read-only and open no transaction. Markups, escape routes and simulation results are written into the Revit file only when you save them.

Do I need a powerful graphics card?

No. The scene is drawn with WPF 3D, which is part of the .NET framework — no external graphics library is loaded into Revit. Large models are handled by choosing a smaller extraction radius rather than by requiring more hardware.

Can I use my own avatar?

Not at present. Two characters are supplied, Leon and Claire, and they are generated in code rather than loaded from asset files — which is why there is nothing to download and no third-party asset licensing to worry about.

Will my markups reach our coordinator?

Yes. Markups export as BCF 2.1 with viewpoints and snapshots, which BIMcollab, Navisworks and Revit all read, and their issues import back and match to elements. Excel export is there for everyone else.

Does it update if I change the model while walking?

No. Geometry is extracted once when the window opens. Close the window and open it again to pick up changes — this is what keeps the frame rate steady.

Try Avatar for 14 days.

Full functionality, no features disabled. Tell us your Revit version and we will set it up.