When loading some of my 3ds models into the engine, I noticed occasionally I got an effect where the texture effectively cut right though to the background. That is, things were not just transparent, but made everything behind them invisible too.
This was due, as far as I could tell, due to mapping errors in my 3d file.
However, its a useful effect and Id like to reproduce it.
Specifically, as I'm working on an AR application it would be a good way to "mask out" real world objects so that other 3d objects could be seen to go behind them.
So I wondered what texture setting is needed to reproduce this effect intentionally?
Hope I explained myself well enough, if not I'll do a picture to illustrate.