use glass. it is transparent. no need to be invisible and stuff. XDAside from the small viewwindow, is it possible somehow overly on top of an object a projection of what's behind it, rendering it invisible?
No it makes sense to me! He's asking if virtual objects/images displayed by HoloLens can completely mask or obscure anything (physically) behind it.
That's an interesting question but I don't know the answer myself.