Interlaced

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References the style of video in the way it gets outputed to a monitor or screen.

With interlacing the video is drawn in lines, with every other line being drawn first and once it reaches the end of the picture it then returns and draws all the lines in-between.

For example:

If each line of the screen was a letter if the alphabet...

  • First Pass it draws...

AAAAAAAA
_
CCCCCCCC
_
EEEEEEEE

  • Second Pass it fills in the blanks

AAAAAAAA
BBBBBBBB
CCCCCCCC
DDDDDDDD
EEEEEEEE

And now you have the full picture.

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