Advanced patterns in PhotoShop

This tutorial will show you how too achieve all kinds of cool and trendy effects using patterns.

First Iwill show you how to do those fancy TV-gridlines.

1, Create a new window with dimensions (2x2), with contents set to transparent.
(File > New)

2, Now select the upper upper half of the square and fill it black.

3, Now select the entire shape, and make it a pattern; call it "TV-gridline".
(Edit > Define pattern...)

4, Close the window without saving changes, and create a new window (600x300), with contents set to white.
(Edit > Define pattern...)

5, To add the TV-gridline effect, hit the Edit tap, and select Fill.
In the Drop Down box select Pattern, and highlight your newly created pattern entitled "TV-gridline".
(Edit > Fill)

You're done with the gridlines. This effect can be modified to suit your need. I.e. the (in)famous crosses..(like on space pictures, can be achieved using the same way....but instead of using a 2x2 image as pattern, use a 50x50 image, with a cross in the top left corner.