I'm trying to figure out how to make a stereoscopic UI with VDE in Unity 4.6.4. I try placing the world space canvas in front of the cameras--but when I hit play, the canvas doesn't render (despite it showing up in the game view before play is hit). It's attached to the AR Camera, so it moves with the camera. And in the editor it indeed looks like it's in the right position--but yet none of the canvas elements render. The culling mask seems fine, and I've tried moving the canvas around...still can't see it.
Has anyone had any success using Worldspace canvases with VDE? Is there a better way to make a stereo GUI?