(https://forum.freeplaying.it/proxy.php?request=http%3A%2F%2Fi.imgur.com%2FS2yYlVB.png&hash=55eda5d3dce2f1b00b3953d3c13e3a012ac43743)
QuoteSpace Sketchr is a playful demo app that demonstrates the potential of Project Tango technology by allowing the creation of virtual 3D drawings in space using full-range motion tracking. Originally created as a curious prototype to draw connections between two points within a given space, Space Sketchr allows a user to create illustrations that have virtual dimensions that you can walk around and view from any angle. Imagine a new kind of sculpture or drawing with a timeline in space.
Link:
https://play.google.com/store/apps/details?id=com.leftfieldlabs.drawingtest