Originally Posted by Josh Z
Hmmm... interesting. I don't know if it's a difference in the displays (though I get the same effect on both of mine) or if each viewer's ocular physiology plays into this, but those credits definitely do not extend in front of my screen. Now, there is
depth in that sequence, and some of the credits appear in front of other credits, but they don't penetrate the screen window for me.
About the only time I've seen "popout" is during the PS3 game Super Stardust HD. When you die, your ship explodes in a huge burst that flies through the screen.
Whether things appear to pop out should be a function of one physical element only: whether the object in question is displayed within the left eyepoint physically to the right of the location within the right eyepoint on the screen.
If both eyepoints display the object at the same physical location on-screen, the object will look like it is exactly at the distance of the screen.
If the object in the left eyepoint displays physically to the left of the object within the right eyepoint, then it will appear to be behind the screen.
Settings in the BD player or display device can affect the relative location on the physical screen by shifting the image: force the left eyepoint to display 5 pixels further right than normal, and the right eyepoint to display 5 pixels further left than normal, and things will pop out a little more - you also lose 10 pixels of data (5 pixels on each side).
There shouldn't be any ocular physiology involved - that might affect how much the object appears in front or behind, but not whether it appears in front or behind.
Psychologically, well, that's a whole other kettle of fish, although I don't think it would be typical to have that affect out vs in, but again, like physiological factors, just how much.