How to create scan lines (Defining a pattern)

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How to make scan lines

"Scan lines" can be useful for a lot of things, if not to just add a bit more detail and they're easy to create.


Steps

1. Create a new document. (Height : 4px ; Width : 4px)

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2. Zoom in the most you can (3200%)

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3. Create a new layer

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4. Hide the Background default layer.

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5. Using the Pencil tool draw a diagnal line on the new layer.

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6. Go to edit > Define pattern and call it anything you want. I called mine "scan lines"

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Using the scan lines

On the desired image / layer, right click it and go to "Blending Options..", a new windows will appear, go down to "Pattern Overlay" and select it from the drop down box. You can also reduce the opacity in there.