Well, I 'm not exactly sure how to, but I'm sure you're trying to match red and blue.
What does "match" mean, and how would I know when they are matched?
Have you tried using IZ3D's Dynamic Test in there help menu? If you can get that to display in 3D, you might get a better idea of what to do in a game.
Yes. The effect seems a bit subtle - I'm not even really sure if it's there or not.
I did another test - I tried Painkiller, again in black and white. This was actually pretty good. The first level is a graveyard, which means lots of props, and the props seemed to exist in 3D space, although the level architecture didn't really convince me. The second level, on the other hand, had a short hallway that really did convey a sense of depth. Ironically, it's the weapons that I see double of when looking at, and changing the convergence didn't seem to do a thing to them.
Unfortunately, seeing the 3D in Painkiller still required some focus, and focusing on the gameplay would make me more or less not notice the 3D. So no chance of me being engaged in battle and reflexively ducking as a mad monk throws an axe right through my monitor.