Skip to main content
All CollectionsGetting started
Room scanning best practices
Room scanning best practices

Tips and tricks to generate fast and accurate 3D scans

Eric Fitz avatar
Written by Eric Fitz
Updated over 4 months ago

Scanning rooms to collect 3D geometry is a breeze. After just a few practice scans, you will get the hang of it.

Calibrate and start a scan

To get the fastest calibration time (1-3 seconds) follow these tips

  • Start at the bottom edge of a wall

  • Have a clear view of the edge i.e. avoid items like furniture that might block the view

  • When prompted, point the camera at the top edge of wall

  • Once the white guiding lines appear, you're done with calibration and can start scanning!

Capture room details quickly and accurately

Once the white lines appear, you are now recording 3D geometry.

  • You don't need to wait for white lines to catch up to get every detail on screen before moving to a new area of the room

  • Imagine you are filming a video of the room that gets a clear picture of all of the walls in the room

  • Rotate around the room, ideally 5-10 ft away from walls. The wider the field of view, the faster we can pick up details.

  • Don't worry about going too fast - the app will alert you to slow down if needed

Scan one room/zone or one building story at a time

We recommend scanning room-by-room (or a collection of rooms that you consider a zone) or one story at a time. Amply does not support scanning multiple floors in one pass.

  • Ductless mini-splits (single or multizone): We recommend room-by-room so that you can pair equipment visualization with the loads.

    • This will also enable the most accurate Adequate Exposure Diversity and peak solar gain calculations

    • For example, if you have one indoor unit serving a kitchen and open living room, scan that space as a single "room"

  • Unitary or central air: We recommend scanning each conditioned building story separately

    • For example, if you have a two-story home, with a below-grade unconditioned basement, you would scan the 1st story and the 2nd story

    • When scanning an entire story, be sure to capture all hallways, bathrooms, etc - any conditioned area of the building

Special LiDAR considerations

Lighting: Scans will be most accurate with good light

A few tips:

  • Turn on lights

  • Open curtains to let in more light. This also helps capture window geometry more accurately.

    • If the room is too dark, the app will automatically warn you of low light conditions

Scanning and LiDAR limitations

  • Multiple Stories: We do not support scanning multiple stories at a time. See above for more details.

  • Large mirrors: Ceiling-to-floor mirrors may confuse the 3D scanning capability, avoid them if you can

  • LiDAR throw distance:

    • iPad LiDAR has a max range of ~15 ft

    • Ceilings or walls outside of that range may be hard to capture.

  • Very dark surfaces:

    • Objects with very dark surfaces might not be able to be scanned.

  • Window curtains can prevent proper window capture

    • Curtains or other window treatments may prevent widows from being accurately measured. Open curtains to both let in more light and prevent window dimensions from being obscured.

Ceilings and Skylights

At the moment, we don't support automatic scanning of skylights or visualization of ceilings.

  • Ceilings: We don't visualize ceilings because they would impair your view of the room when reviewing the 3D model. But rest assured, we are computing and modeling ceiling surface areas behind the scenes to ensure accurate load calculations

  • Skylights: Since skylights are a sub-component of ceilings and due to other technical challenges, we can't automatically measure their geometry. Instead, we provide an option for adding skylights with a few taps to any room after you have completed a scan and are viewing the 3D model.

Did this answer your question?