At it’s most basic, the Reality Augmenter works using Sources and Layers, both require configuration before the Reality Augmenter displays anything useful.
Sources
Sources provide the content that you wish to project, they can be videos, images, text or webpages (currently). Without any sources configured, the Reality Augmenter has nothing to project. It’s important to know that sources can also be cropped, providing further projection mapping options we’ll go into detail over in another post.
Layers
Layers define the areas that will be projected on to, you use the Reality augmenter to align your layers to the real world. Sources are assigned to layers by tapping on a layer in the Layers tab. This brings up the layer properties editor, from there you can select the layer image, which brings up a list of available sources.
New layers are added with the “+” icon in the top right. Layer geometry is locked by default, to prevent accidental interference in a live environment, so they must be unlocked to change their geometries. To do this, tap “Edit” in the top left, or long press on a layer.
The layer geometry view can be panned and zoomed, to allow for very fine control and alignment of projection layers. At higher magnifications, corners of layers will snap to other layer corners, and will then drag those corners along with them. This can be used to build up more complex mapping scenarios. To release a snapped node, long press the node before setting it’s new position.