20 karma · joined June 9, 2013
As for storing the layers - you would only have the "from above" pixels, and only a few. Probably that's why there is only a LensBlur in their app in the first place.
If you just want a small displacement effect like on depthy - then the key is no sharp edges in the depthmap. We will try to tackle this in one of the upcoming updates...
If you have an Android device around, try depthy on it - it's way better this way imo.
As for the fill, if the depthmap is of good quality and without sharp edges - there is no need for that, unless you go berzerk with the scale of displacement.
As for the Shader - it's just a few lines of actual code.
Depthy is a quick weekend hack. There's a loong way before it.
On iOS though it's something different. There's no depth map in there, just a flat image moving counterwise to your hand movements.