[DanAndersen]

When I first glanced at this, I was initially dismissive -- "it's just virtual tracing paper," I thought, fun as a toy but not for teaching how to draw in an active way.

But then I thought more about how a big part of drawing is building up the muscle memory and physical coordination to transition from imagined line to drawn line. The Drawabox [0] series of drawing tutorials has a good amount of emphasis on this. Art tracing projectors [1] are a useful part of various drawing/mural work too.

This AR app actually intersects with some research I've been involved with in an interesting way. I've been working on using AR for surgical telementoring [2], where a remote expert surgeon can give guidance to a less-experienced combat medic by drawing annotations directly overlaid onto the view of the patient's body. While my team and I are now looking at using HMDs like the HoloLens, earlier prototypes used a tablet held in a fixed position above the operating field. I think that this AR drawing app, in order to move beyond the toy/gimmick use case, would best be served by deployment on a tablet that is held fixed above the paper, for a user to look through without having to keep a handheld phone still.

[0] https://drawabox.com/

[1] https://www.engineersupply.com/art-tracing-projectors.aspx

[2] https://engineering.purdue.edu/starproj/

[maxpupmax]

It's an interesting idea. I recently went through drawabox so I gave this app a try, but it's poor execution — basically unusable for me. I think I agree that a fixed deployment would probably be more stable and usable.