Creating grid lines with photoshop is easy, and can be used to make your imagery look tight and froody.

STEP 1

---

Go into the channels window and create a new channel. Make a square selection about 20 pixels wide with the marquee tool. Fill it with white.

STEP 2

---

In the menu, go:
SELECT > MODIFY > CONTRACT > Contract by: 1 pixel

Then, fill the selection with black. It will now look like a small white outlined box.


STEP 3

---

With the Marquee tool still selected, nudge the selection up and to the left, 1 pixel.

In the menu, go:
EDIT > Define Pattern


STEP 4

---

Clear the selection (Ctrl-D) and create a new channel.

Open the Paint Bucket options window and set the contents to PATTERN

Fill the new channel by clicking with the paint bucket tool, and a grid texture will magically appear.


STEP 5

---

Drag the grid channel onto the "Load channel as selection" button. []

Go to the layer window. Create a new layer and fill the selection. (Alt-Backspace)


STEP 6

---

Enjoy the attractive imagery you and your new-found skills have just created and celebrate over a steaming bowl of re-digested monkey-brains.