Seamless Textures
From MovieBattles II Wiki
Basically this tutorial is for removing "seams" in 2d textures, this is useful if you plan on having your texture repeat over a surface larger than it's resolution, such as when texturing models,maps, or simply want to make a background made up of repeating tiny images.
The first thing we have to do is identify what "seams" are. Heres a picture of a texture which does not tile properly because of seams:
As you can see, this is ugly and detracts from the visual quality of the texture.
Heres an example of a seamless texture:
Both textures are the same size(512x512) and neither are stretched in the editor, yet one has seams and the other does not.
Seams are caused by one edge of the image not lining up with another side of the image, this is usually not a problem unless you put the texture side by side.
Now that we got that out of the way, here's the easiest way to make a seamless texture:
1. Open up a texture you wish to make seamless, be it wood, grass, water, etc.
2. Select the rectangular marquee tool, and select half of the texture( vertically, so the center line should be vertical, not horizontal)
3.Copy the selection and paste it, you should have a new layer with the pasted section.
4. go to edit>transform>flip horizontal and move it over so it lines up with the marquee( easy to tell, the image should fit together nicely)
5. Depending on how the image is, you may also want to repeat steps 2-4 for horizontal, but usually this will not matter as much visually.
Most people won't find a use for this effect, unless your someone who makes a lot of textures ( level designers, modelers, etc) However it can be used for other things, for example a kalaidescope effect for a desktop background. Play around with it, it's a good to skill to have regardless if your a texture designer or not.
Author's Note: Sorry this tutorial isn't very indepth, if you need any clarification just ask.(Also, there are other ways to make seamless textures, this is just the easiest)
