howto make 3d shutter glasses?
i cannot find any instructable on making something like shutter glasses.
my idea is:
the left-eye image gets a white 10x10px rectangle in the top-left corner of the computer screen,
the right-eye image gets a black rectangle.
the shutter glasses would have a photoresistor glued (or somehow placed) onto that 10x10px-area for timing.
but i don't know how to use that (binary) signal to control the transparency of the 2 LCDs. i don't even know which LCDs to use or where to buy it.