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Backgrounds - Seamless
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Backgrounds - Seamless
Created by: Kawliga

 
An easy way to create seamless backgrounds is to use symmetry. Symmetry is a mathematical term, which deals with mirroring along a (imaginary) line. Everything on one side of this line is mirrored on the other side of the line.
 
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For this tutorial you'll need an image. Actually you can use any image to create seamless backgrounds, but if you haven't got one available, you can download the image used in this tutorial.
 
Open "Roses.psp" from your download or any other image you like to work with.
 
Copy this image to the clipboard: Go to Edit || Copy.
 
Now we enlarge the canvas: Go to Image || Canvas Size. We need it twice the width and twice the height of our picture; our "Roses.psp" is 100x100 pixels, so set:
New Width/New Height = 200
Center Image Horizontally/Vertically = unchecked
Top = 0
Left = 0

The settings for "Bottom" and "Right" are filled in automatically. Click on OK. The image should now be in the top left corner of your canvas.

 
Your image is still in your clipboard; now paste it as a new selection: Go to Edit || Paste || As New Selection.

Move this selection to the coordinates (100, 0), to the upper right corner of your image.

 
Now mirror your selection:

Go to Image || Mirror.

 
Now paste your clipboard as new selection again: Go to Edit || Paste || As New Selection.

Move this selection to the coordinates (0, 100), the bottom left corner of your image.

 
This time flip the selection:

Go to Image || Flip.

 
Paste your clipboard one more time: Go to Edit || Paste || As New Selection.

Move this selection to the coordinates (100, 100), the bottom right corner of your image.

 
This time, you can either rotate this selection by 180 degrees, or you can flip and mirror:

Go to Image || Flip and then to Image || Mirror.

 
And here you have it, a seamless image. Try it out by floodfilling a 500 x 500 image with it.

If you want to know how to use opacity to turn this into a nice background, go to this tutorial!