This tutorial will teach you how to take a texture and make it seamless so you can tile them side to side and top to bottom without one single seam showing. Let's get started, shall we?
1. Open up a texture that you wish to make seamless. I will be using this texture:
2. Once opened up in PhotoShop, go to the Offset filter. ( Filter > Other > Offset... )
Use these settings:
3. Click "OK", then get out your stamp tool. Hold down ALT and click right above one of the lines. Make sure your brush is bit "fuzzy" as I like to call it and go right over the lines. You will see that your image looks normal again like so:
Tiled:
