Exporting your model.

Rhino

1. Check units: Tools → Options → Units → Model = metres.
2. Hide or delete construction layers, then select everything to publish.
3. Rhino 8: File → Export Selected → glTF Binary (*.glb). Keep materials checked.
4. Rhino 6/7 (no glTF): File → Export Selected → OBJ. In meshing options choose Smooth & slower, check Weld vertices and Export material definitions. Upload the .obj.

Revit

1. File → Export → IFC.
2. Setup: IFC4 Reference View (IFC 2x3 also works).
3. Export only the 3D view you want published (hide annotation categories first).
4. Upload the .ifc — walls, roofs and openings convert with their true geometry.

Archicad

1. File → Save As → IFC.
2. Translator: General Translator (IFC4), geometry only is enough.
3. Filter to the published story range / layers before saving.

SketchUp

1. File → Export → 3D Model → COLLADA (.dae) (works in Free and Pro).
2. Options: check Triangulate all faces and Export texture maps.
3. Pro users can export OBJ or FBX instead — both upload fine.

Blender

1. File → Export → glTF 2.0 (.glb).
2. Check Apply Modifiers; leave +Y up as is (handled automatically).
3. Compression is optional — vizt re-compresses either way.

Name your layers — vizt reads them

The viewer understands your model through layer / material names. For every object vizt takes the material name first; if the material is unnamed (a Rhino "default" material), it falls back to the nearest named parent layer / node. Matching is case- and accent-insensitive (Cubierta = cubierta), the keyword only needs to appear somewhere in the name (3.4.- TEJAS matches teja), and Spanish + English keywords both work.

Each name feeds two independent decisions: the category — what the object is, which drives viewer behavior (Roofs/Terrain toggles, walking collision) — and the material — how it renders. puerta vidrio is a Door (category: you can walk through it) rendered as glass (material). Both can be overridden per layer from the project page, no re-export needed.

1 · Categories — behavior

Checked in this order — the first hit wins (puerta muro is a Door, not a Wall):

2 · Materials — appearance

Also first-match-wins, in exactly this order:

3 · Walking & collision

With Solid walls on (project page → Layers & materials) visitors walking the model collide with every object except Door layers. To make that work well:

• Put door leaves on their own layer named with puerta / door — closed doors then never trap a visitor in a room.
• Door frames can stay on the door layer (visitors pass through the leaf and frame alike); glass panes should be a separate vidrio layer if you want them to stay solid.
• Openings without a door object need nothing — collision only blocks where geometry actually is.
• Naming walls (muro, pared…) is optional for collision — everything solid blocks — but it documents intent and lets you flip a mislabeled layer to Door in one click.
• Auto-detection wrong for a layer? Override its category to Door (walk through) or Wall (solid) on the project page — the override wins over the name.

4 · Gotchas

• First match wins: viga metal → metal (not wood); puerta vidrio → glass material (but still Door category); suelo hormigón → concrete — name it just suelo for the floor finish.
• One layer per real-world material is the golden rule — split mixed layers at the source.
• A layer only appears in the Layers list when its objects carry a named material, or — if the material is unnamed — when a parent node carries the layer's name. Unnamed-material objects share the (default) row; give them a real material name to control them individually.
• Category and material are independent: a cubierta vidrio skylight hides with the Roofs toggle and renders as glass.
• Keywords match anywhere in the name: muros_bajos is a Wall (contains muro) — usually what you want, but check the "Auto (…)" hints on the project page to see what was actually detected.

Can't rename the source file? Use the Layers & materials card on the project page: it lists every material with what was auto-detected and lets you override the category (Door / Wall / Roof / Terrain / None), the material and a tint per layer. Overrides are stored with the project and apply to every client link.

If something looks wrong

Model arrives tiny or huge → the source file wasn't in metres; rescale and re-export. Missing walls → they were on a hidden layer during export. "Too heavy to compress" → reduce mesh density (Rhino: coarser meshing options; Revit: export fewer categories) and try again. Still stuck? Send us the file: hello@monomedialab.com.