The Grid

[jfrancis]

If you make a plus-sign cross '+' in a small square image and define it as a pattern with edit > Define pattern then you can fill a larger image with the pattern and you will have your grid pretty fast.

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the advantage of the + pattern is you can make a grid 1 pixel wide if need be. With some other methods you can't get thinner than 2 pixels wide.

[jfrancis]

If you happen to want a hexagonal pattern you can do this:

http://www.digitalartform.com/archives/2009/06/hexagonal_trian.html

or you can figure out what the rectangular tile is which will repeat to form a hexagonal grid. (There is one)

[SmallPoly]

When I need a grid to appear in an image, I use a pattern fill layer with a custom pattern. To make a grid pattern:
-Create a new document (eg. 60x60 for a 60 pixel grid)
-Duplicate the base layer or do "layer from background"
-Go to Blending Options (right-click the layer), check "Stroke"
-In the settings for stroke, set the stroke color to black and set position to inside.
-Adjust the # of pixels until you are happy with the width of the grid lines.
-Click OK to close the window, applying the changes.
-Go to Edit-->Define Pattern, and give your pattern a name (eg. "60px grid")
-In your main document create a new fill layer, select your new pattern, and set the pattern scale to whatever suits your needs. (Layer-->New Fill Layer-->Pattern)

Photoshop also has a feature that displays a grid over everything and is not part of the image. It can be accessed by going to View-->Show-->Grid. The spacing can be changed in the photoshop preferences.

[mef]

Thanks all/ I forgot that I could make a pattern to do that. It's funny what you forget when you're under the gun.

Marc

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