News for hackers. Stuff that matters.
Re:Show HN: A web app to turn photos into 3D AR models. by porkbrain on Saturday January 01, 2022 @09:11PM (#29765046)
If it's not a secret, I'd love to read some design document about the backend behind this app. What's the blackbox that takes set of images as an input and produces a 3D model as an output?
Re:Show HN: A web app to turn photos into 3D AR models. by nobbis on Saturday January 01, 2022 @10:12PM (#29765410)
It uses the Object Capture API introduced in the latest version of macOS.

The API allows you to create 3D models from images with just a few lines of code.

https://developer.apple.com/augmented-reality/object-capture

Re:Show HN: A web app to turn photos into 3D AR models. by schappim on Saturday January 01, 2022 @10:22PM (#29765476)
If we're talking Swift frameworks, ModelIO (underrated) and ObjectCapture are certainly part of things.
Re:Show HN: A web app to turn photos into 3D AR models. by nobbis on Saturday January 01, 2022 @10:37PM (#29765558)
He asked for the “blackbox that takes set of images as an input and produces a 3D model as an output.”

That black box is Object Capture API, which takes a folder of images and outputs an USDZ (or OBJ) file. Model I/O isn’t necessary.

Kudos to Apple for releasing a photogrammetry pipeline that allows web and app developers to build tools like this, with zero knowledge of 3D reconstruction required.

Re:Show HN: A web app to turn photos into 3D AR models. by secretsatan on Sunday January 02, 2022 @12:35AM (#29766156)
I’ve just been trying out the photogrammetry session, it’s super simple to use. I think Apple’s photogrammetry software isn’t as advanced as other’s, but it is free and works well small scale.

I work in the same field, making a capture app for photogrammetry software

Re:Show HN: A web app to turn photos into 3D AR models. by schappim on Sunday January 02, 2022 @02:12AM (#29766559)
Yeah what Apple's has is a clear lead on the time required to build objects.

I think that the photogrammetry side of things, the "give me an object now" will shift towards mobile device camera apps.

It is only serverside now due to power requirements.

Re:Show HN: A web app to turn photos into 3D AR models. by secretsatan on Sunday January 02, 2022 @01:01PM (#29771471)
If they make the api available on ios it will be a game changer, i’m hoping they’ll make it available for the m1 chipped devices
Re:Show HN: A web app to turn photos into 3D AR models. by schappim on Sunday January 02, 2022 @05:00PM (#29774436)
The rumours say they're putting m1 level devices in the the headset. Again the power budget is the only issue!
Re:Show HN: A web app to turn photos into 3D AR models. by schappim on Saturday January 01, 2022 @10:45PM (#29765605)
You're not wrong (althought we do use ModelIO a lot).

I just saw that you're from https://www.aboundlabs.com and metascan.ai Your scans look great! So how does your black box work?

Re:Show HN: A web app to turn photos into 3D AR models. by schappim on Saturday January 01, 2022 @09:29PM (#29765146)
We've very much built on the shoulders of giants:

  - Frontend & API (Rails + jumpstartrails.com)
  - Images --> USDZ (Swift Code on a Cloud hosted Mac)
  - USDZ --> GLTF (Swift + Custom Ruby)
  - CDN (AWS Cloudfront)
Lots of Glue:

  - AWS S3 / Cloudfront
  - AWS SQS