← RoomCanvas
Support
Stuck? Start here.
The projector can't be found
- Make sure your phone and the Chromecast / smart display are on the same Wi-Fi network.
- On the Output screen, tap Scan Outputs — nearby devices appear by name within a few seconds.
- HDMI and browser-window outputs don't need a network at all: open the output link shown in the app on any screen with a browser.
The light doesn't line up with the real surface
- Select the surface, then drag its numbered corners while watching the wall — the beacon on the output marks the corner you're holding.
- Use Calibrate for a corner-by-corner walk with fine trackpad control.
- Or let the camera do it: Scan room projects patterns and finds surfaces automatically.
A room scan didn't find my surfaces
- Dim the room lights and make sure the projector fills the area you're scanning.
- The scan review screen shows exactly what the camera decoded — surfaces it found can be adjusted afterward like any other shape.
Send feedback or request a feature
Found a bug, want something the app doesn't do yet, or just have a thought? Write it below — the button opens your mail app with everything filled in, addressed to info@nebulabay.online.
Everything else
Email info@nebulabay.online and describe what you expected versus what happened. Because RoomCanvas keeps everything on your device, attaching a screenshot of the screen in question helps a lot.
Privacy questions? See the privacy policy.