
So what I do is create an image that's the right size to cover the entire animation in MS Paint, and draw alternating black and white lines (it's quick if you draw a few, then copy-paste in blocks). Then I stick it as a new layer on top of all the others and set the layer blending mode to 'Darken' if I want black bars or 'Lighten' if I want white bars.
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Sun 8 May 2005, 0:09,
archived)

to create a pattern in photoshop by creating a new canvas, transparent background, 1 pix wide, 2 high then make one pix black and that's its. Define the pattern in the menu then just fill that as a layer as you need it ;)
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Sun 8 May 2005, 0:13,
archived)

I have a problem in that photoshop forgets my patterns when I close it. It also seems to forget which hotkeys I specify when I create an action.
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Sun 8 May 2005, 0:24,
archived)

as seen here
anyway... while in imageready
open up a new document, width 1 px, height 2 px. make one pixel black, the other leave transparent.
click "edit" and then "define pattern."
click the last layer of the animation (not the frame, the layer) then add a new layer to the end. right click and find another drop down menu ("layer style") and click "pattern overlay." when the new small menu comes up for pattern overlay, click the small down arrow and click "user defined pattern." now go back to "edit" and click "fill" then press ok for the pop up window.
so basically you're copying a layer of scanlines on top of all the other layers; the scanlines themselves are nothing more than a tiled version of two pixels. it's a great method.
( ,
Sun 8 May 2005, 0:15,
archived)
anyway... while in imageready
open up a new document, width 1 px, height 2 px. make one pixel black, the other leave transparent.
click "edit" and then "define pattern."
click the last layer of the animation (not the frame, the layer) then add a new layer to the end. right click and find another drop down menu ("layer style") and click "pattern overlay." when the new small menu comes up for pattern overlay, click the small down arrow and click "user defined pattern." now go back to "edit" and click "fill" then press ok for the pop up window.
so basically you're copying a layer of scanlines on top of all the other layers; the scanlines themselves are nothing more than a tiled version of two pixels. it's a great method.