# Frame Studio guide

Frame Studio opens a home, shows it the way the Steam Frame draws it, and lets you change it: move, hide or delete
its objects, decide where you can walk, add spawn points, seats and sounds, and save it as a `.fenv` environment for
the headset. This guide walks through the window and the everyday tasks. To install Studio, see
[getting-started.md](getting-started.md).

## The window

```
┌───────────────────────────────────────────────────────────────────────────┐
│ File  Edit  View  World  Bundle  Headset  Debug  Help         menu bar     │
├────┬──────────────┬──────────────────────────────┬────────────────────────┤
│ ✥  │ EXPLORER     │                              │ Selected World Env… … │
│ ⟳  │ Filter…      │                              │ ───────────────────── │
│ ⤢  │ ▾ Root       │          3D VIEW             │      INSPECTOR         │
│ ✎  │   ▾ folder   │                              │  (the chosen tab's     │
│ ── │     object   │                              │   settings)            │
│ ◍  │ ▾ World      │                              │                        │
│ ☺  │   Spawns …   │                              │                        │
│ ⌗  │              │                              │                        │
├────┴──────────────┴──────────────────────────────┴────────────────────────┤
│ ❚❚ Pause  ───────────●─────────────────  12.0 / 60.0 s          Sound on   │
│ Home name · format · selection · fps                      Frame: sent …    │
└───────────────────────────────────────────────────────────────────────────┘
```

| Part | Where | What it's for |
|---|---|---|
| **Tool strip** | left edge | the transform tools, Draw Floor, and how the gizmo and the camera behave |
| **Explorer** | left | everything in the home: its objects (in the file's own folders, or grouped by kind) and its world items |
| **3D view** | middle | the home as the headset draws it, with the gizmo and the walkable area on top |
| **Inspector** | right | settings, in tabs: **Selected**, **World**, **Environment**, **Bundle**, **Headset** |
| **Timeline** | bottom | plays the home's animations and sound; drag to scrub through the loop |
| **Status bar** | very bottom | the home's name and format, what's selected, the frame rate, and whether the headset has it |

Drag the thin lines between the Explorer, the 3D view and the Inspector to make any of them wider.

## Opening a home

- **File > Open Home...** (Ctrl+O), or drop a file on the window. It opens:
  - a Meta home (`.apk`). A *footprint* (the room) and its *vista* (the world outside) are opened together: pick both
    in the file dialog, or open the footprint and Studio offers the vistas beside it;
  - a Frame environment (`.fenv`);
  - models from Blender or Unity (`.glb`, `.gltf`, `.fbx`, `.obj`).
- **File > My Environments** lists what you have saved; **File > Open Recent** lists what you had open.
- **File > Add Vista...** gives a footprint its vista; **File > Add Models...** places models into the home.
- A big home asks after a while whether to keep waiting; **Stop Loading** cancels.

## Moving around in the 3D view

| Do this | With |
|---|---|
| Orbit | middle-drag, or Alt + left-drag |
| Pan | Shift + middle-drag |
| Zoom | mouse wheel, or Ctrl + middle-drag |
| Fly | hold the right mouse button + W A S D, Q / E down / up (wheel: speed, Shift: 4x) |
| Look from where you'd stand | **Player view** in the tool strip, P, or Numpad 0 |
| Frame the selection / everything | F / Home (or double-click a row in the Explorer) |

Press **F1** (Help > Controls) for the full list.

## Selecting and editing objects

1. Click an object in the 3D view or the Explorer. The Inspector switches to **Selected**.
2. Pick a tool in the tool strip (or press its key) and drag the gizmo:
   - **Move** (G), **Rotate** (R), **Scale** (S). Hold Ctrl to snap.
   - The globe / cube button switches the gizmo between the world's axes and the object's own.
3. Or type exact values in **Location**, **Rotation** and **Scale** in the Selected tab.
4. In the same tab: **Visible**, **Reset** (back to where the home had it), **Only This** (hide everything else,
   I), and **Delete** (X).

The Explorer's eye buttons hide objects or whole folders. **Edit > Unhide All** (Alt+H) brings them back. Every
change can be undone with Ctrl+Z and redone with Ctrl+Shift+Z.

## Where you can walk

Frame Home works out where you can walk from the home's shapes: floors you can reach from the start, under enough
headroom, and nothing in the way. The 3D view shows it: green is walkable, blue are small gaps it bridges, orange are
edges, grey are floors you can't reach. **W** shows or hides it.

- The **World** tab shows the area's size and its settings (step height, headroom, body radius). The presets
  **Open**, **Standard** and **Careful** set them for you.
- **World > Auto-generate Walkable Surfaces** gives every mesh a surface: walkable where it's flat, blocking where
  it's steep. A summary shows what it did; **Undo** in it takes back just that run.
- Per object, the **Surface** buttons in the Selected tab decide what it is for the player:
  **Auto** (decided by its shape), **Surface** (walk on its flat parts, bump into its steep ones),
  **Collider** (you can't walk through it), **Walk through** (ignored). Right-clicking an object offers the same.
- **Draw Floor** (B, or the brush in the tool strip): select an object, then drag over it to paint walkable floor
  onto it, even on furniture. Shift+drag erases; [ and ] change the brush size. **Fill Flat Faces** paints every face
  of it that's flat enough at once.

## World items

**World > Add at the View's Centre** places items where the camera looks:

| Item | What it does on the headset |
|---|---|
| **Spawn Point** | where you start, facing the way it faces |
| **Seat** | a place to sit: point at it and pull the trigger; its "stand up here" ring is where you get up |
| **Teleport Hotspot** | a spot the teleport arc snaps to |
| **Surface** | a box you can scale into a floor, a step or a wall |
| **Wall Spot** | where SteamVR's panels dock |
| **Invisible Wall** | stops you; never drawn on the headset. Scale and turn it to fit; where it stands is no longer walkable |
| **Gravity Zone** | inside it, "down" is the zone's own: a direction, or any surface you stand on |

Select an item to move it with the gizmo or type its values in the Selected tab. **World > Clear World Layer**
removes them all.

Meta's own homes have invisible walls too, round their play space (Cascadia, Space Station, Desert Terrace, Haven).
Frame Studio and Frame Home read them as invisible walls, so you can't walk out past them. Select one in the Explorer
to delete it, or set its **Role** to Surface, if you want to go further in that home.

## The environment: name, picture, sound

The **Environment** tab, top to bottom:

- **Environment**: the name it shows on the headset, its picture (**Choose...**, or a view taken when you save), and
  what it's made of.
- **Sound**: the home's own ambience and a background sound of your own (MP3, Ogg, Opus, WAV or FLAC), with their
  volumes. Drop a sound file on the window to add it. **Save Its Sound...** keeps the home's ambience as an Ogg file.
- **World settings**: its own headset settings: resolution, foveation, MSAA and frame rate.
  **Calculate Best Settings** walks it on the headset and keeps the sharpest settings that hold 120 fps.

## Saving

| Command | Does |
|---|---|
| **File > Save** (Ctrl+S) | saves into **My Environments** (`Documents/Frame Studio/Environments`); a saved `.fenv` saves into itself |
| **File > Save As...** (Ctrl+Shift+S) | saves a copy anywhere; Save goes there from then on |
| **File > Auto-saved Versions** | every 5 minutes with unsaved changes, a version is kept (the last 10) |
| **File > Faster Saving** | packs on all CPU cores: about 3x quicker, about 1% bigger |
| **File > Leave Out What Can't Be Seen** | drops geometry nobody can see from anywhere they can stand, so the headset draws less |
| **File > Revert to Original** | the home as it shipped, without your changes |

Saved environments are *baked*: everything the headset needs, already in its own format. See
[environments-and-fenv.md](environments-and-fenv.md).

## Bundles

A bundle (`.fbundle`) packs several saved environments into one file, to share or install together. Use the
**Bundle** menu or the **Bundle** tab: **New Bundle**, add environments (the open one, from My Environments, or any
`.fenv`), **Save Bundle...**, and **Install on Steam Frame...**. Opening a `.fbundle` lists what's in it; double-click
one to open it, or **Unpack into My Environments**. See [bundles.md](bundles.md).

## Sending it to the headset

The **Headset** tab (or the **Headset** menu):

- **Send to Frame** makes the open environment the headset's current one, saved or not.
- **Install Frame Home** puts Frame Home itself on the headset, with the environments and bundles you list under
  **Environments to install**. **Restore SteamVR's Environment** takes it off again.
- The **Headset** field is the headset's address: an SSH alias such as `frame`, or `steamos@<address>`.
  See [headset-setup.md](headset-setup.md) and [install-frame-home.md](install-frame-home.md).

## Settings and tools

- **Edit > Settings...**: Studio's own (3D view resolution, anti-aliasing, texture size and filtering) and the
  headset's (read from and written to the Frame).
- **Debug**: views that show how the home is built and what it costs (Wireframe, Meshes, GPU Cost, Overdraw),
  **Leave Out** to hide whole kinds of objects, **Home Report...** (what the home is made of and what may be slow)
  and **Headset Debug...** (the same views on the headset).
- **View**: **Show Only Selected** (I), **The Home's Meshes**, **World Layer** (W) and **Show Everything**.

## Keyboard shortcuts

| Key | Does | Key | Does |
|---|---|---|---|
| Ctrl+O | open | Ctrl+S | save |
| Ctrl+Shift+S | save as | Ctrl+Z / Ctrl+Shift+Z | undo / redo |
| G / R / S | move / rotate / scale | B | draw floor |
| H / Alt+H | hide / unhide all | X, Delete | delete |
| F / Home | frame selected / all | P, Numpad 0 | player view |
| I | show only selected | W | world layer |
| Esc | deselect | F1 | controls |