When creating a imageTarget, it allows me to add the Width and height. However I don't know how to exactly calculate the size in Unity units.
I have a print pieces that is 8.5x11 that I'm using as a imageTarget. What size should I use to equal units in Unity? Could I use the equivalent of 8.5 width in pixels? And, does the height matter?
Also, can I control the distance of when the imageTarget tracking is found to activate the imageTarget? Basically, could I define a certain distance of when the imageTarget is activated?
Lastly, could I target a real world billboard from the ground as an imageTarget?