ok but if the tv itself has 3d ready cant u just still play the game in 3d?
Nope, a 3DTV can output 3D signal but first it need to receive it and if the game does not have a 3D output(3D tag on it) it wont make a difference weather you go a 3DTV or not.
These are the list of PS3 games so far that can play 3D, becuase these games where specialy designed to output 3D signal if you got a 3D TV, so ordinary games(with out 3D tag on the box) will just play in 2D no matter what TV you have
Auditorium*
Batman: Arkham City
Call of Duty: Black Ops
Captain America: Super Soldier
Cars 2: The Video Game
Child of Eden
Crysis*
Crysis 2
de Blob 2: Underground
Dungeon Defenders*
Dynasty Warriors 7
Enslaved: Journey to the West (via PSN software update)
EyePet
The Fight: Lights Out
The House of the Dead: Overkill — Extended Cut
Gran Turismo 5
Green Lantern: Rise of the Manhunters
God of War: Origins Collection
High Velocity Bowling
Hustle Kings*
ICO & Shadow of the Colossus Collection
Invincible Tiger: The Legend of Han Tao*
James Cameron’s Avatar: The Game
Killzone 3
MLB 11: The Show
Mortal Kombat
MotorStorm: 3D Rift*
MotorStorm Apocalypse
NBA 2K11 (via PSN software update)
NBA 2K12
PAIN*
Prince of Persia Trilogy*
Pro Evolution Soccer 2012 (via software update)
Puzzle Dimension*
Ratchet & Clank: All 4 One
Red Faction: Battlegrounds*
Resistance 3
Ridge Racer 7*
Rocketbirds: Hardboiled Chicken*
Shaun White Skateboarding
SOCOM 4
Sonic Generations
The Sly Collection
Super Stardust HD* (via PSN software update)
Swords and Soldiers*
Tetris on PSN* (via PSN software update)
Thor: God of Thunder
Tom Clancy’s Splinter Cell Trilogy
Top Darts*
Top Spin 4
TRON: Evolution
Tumble*
Virtua Tennis 4
WipEout HD*
Assassin’s Creed Revelations
EyePet & Friends
Medieval Moves: Deadmund’s Quest
UNCHARTED 3: Drake’s Deception