> For the complete documentation index, see [llms.txt](https://learn.shapesxr.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://learn.shapesxr.com/mixed-reality-and-passthrough/room-scale-mode-spatial-anchors.md).

# Room-scale mode (Spatial Anchors)

**Room-Scale Mode with Spatial Anchors** lets you design and create spatial experiences that stay exactly where you place them — session after session. Walk into your room, and your virtual objects remain anchored to the same real-world spots every time you return.

#### **Why It’s Amazing**

**Persistent Mixed Reality** — Place content once, and it stays fixed to the physical world even across sessions.\
**Design With Confidence** — Build spatial layouts that feel natural because they stick where you put them.\
**Ready for Collaboration** — Anchored spaces make it easy for others to join you and see your designs in the [same real-world context](/mixed-reality-and-passthrough/room-scale-collaboration-shared-anchors.md).

### How to Activate Room-scale mode

Go to **Settings → Spatial Anchor Mode** and tap the blue button to launch the setup.

{% hint style="warning" %}
Allow the use of spatial data if requested.
{% endhint %}

If this is your first time, you’ll be guided to set up your physical space — this builds the baseline anchor for your room. Then click on **Enter Spatial Anchor mode** to activate it. 

{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FV5IFh3rk5kqfCwJPPYhE%2Fuploads%2Fm8myswnlQ4001VtfCVOg%2Fshared%20anchors%20setup.mp4?alt=media&token=01be6ac3-556d-42d2-a29e-bdc694953e79>" %}

### Aligning the virtual world with the physical world

Once activated, it’s time to sync the virtual world with the real one:

**Adjust Position & Rotation** by holding both grip buttons on your controllers to fine-tune where your content lives. \
**Set Floor Height** using the slider so everything sits at the right level.

When you’re happy with it, hit **Done** — your scene is now locked in place.

{% embed url="<https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FV5IFh3rk5kqfCwJPPYhE%2Fuploads%2F52X2XIXUucDQxf78QxkD%2Faligning%20the%20space.mp4?alt=media&token=0397a92a-4d15-4fff-84f6-6460cb1b945c>" %}

### Room mesh

We visualize the walls and objects of the physical space you've configured in your headset. You can hide and show Physical space mesh visualization using the "**Show physical space mesh**" toggle.

### Dollhouse mode

Scale down using the Grip buttons on both controllers for a *bird’s-eye view* of your room to move, resize, or tweak content faster and more comfortably. When you’re done, jump back to real scale with a tap on the **"Back to 1:1 scale" button**.

<figure><img src="/files/SYPzXV4B9s18sGDqMT3V" alt=""><figcaption></figcaption></figure>