Hi @rlonau,
Great questions, happy to help.
“Wall tracking” is not currently possible in any of our tools (there is a workaround, mentioned later).
Although our Studio world tracking implementation is built upon ARKit and ARCore, we don’t expose the horizontal tracking plane tracking as we find it can be quite inconsistent across devices.
For Universal AR and the instant world tracking variant, we don’t currently detect the ground plane so it’s also not possible to detect a horizontal plane.
In the past we’ve seen faked “wall tracking” experiences by placing an indicator on the floor during the placement state. This indicator can be matched up with the bottom of a wall (where it meets the floor) and your content can be positioned as if it where to be placed on the wall above that indicator. When the place button is tapped, the content will become visible and from a user perspective, tracked to the wall.
Our previous implementation of instant tracking wasn’t entirely set up for this workaround due to the anchor point needing to be in the camera view at all times, however, the new beta version of the instant tracker should be much better as the content will be much more stable without the anchor in view. Saying that, we’d still recommend trying to get the end user to stand far enough back so the bottom of the wall and anchor point are visible in the camera view to improve the tracking stability.
Here’s an example of that “faked” workaround in action:
And a QR code if you’d like to test:
As you can see, it’s not amazing but might be ok for some specific use cases. Definitely worth testing thoroughly if you wanted to use it in a live project.
Hope this helps.
George