Almost same as split screen, but BAM creates interlenced image. You don't need to switch anything on display/TV. This mode requires pixel - pixel precision. You have to use display native resolution. Make sure, that Your TV or GFX card don't scale image. Some TVs on PC-input "enlarge" image 1-3%, also GFX cards, if detect TV screen can scale image. If TV or GFX card do this, it will negate "Stereo 3D" effect.
Advantages and disadvantages
+ No color distortion
+ Low GPU usage
+ No need to switch anything in display/TV
- Shaders are used
- Resolution dived by 2
- Requires compatible display