Avatar has revolutionized S-3D movie with new tech. ie, RealD and polarised glasses (IMAX uses LCD shutterglasses) bringing full colors, non ghosting, good depth images to audience.
PC gaming has long been using similar technologies, ie polarised and shutter glasses, providing even better quality S-3D images than what Avatar can: adjustable brightness and convergence/separation on the fly.
Nowadays, anaglyph (Red/Blue) glasses are fit only for demo purpose because they're cheap.
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