Have you ever teleported to a region in Second Life, only to find that everything is grey, and you have to stand there for 30 minutes waiting for everything to rez? Have you found that even once everything has rezzed and you start to move around, it's like walking through glue? Are you loosing customers/traffic because they don't want to wait around for everything to rez?
Well here are some pointers on optimizing your textures to avoid all of this, resulting in a fast loading more pleasant experience.
All textures are made up out of Pixels, tiny little squares that together make up all the colours and patterns in a texture. In general, textures for games are sized up by the power of 2 (2 pixels or tiny squares).
512 by 512 is the biggest texture size you should really use in Second Life for optimal performance. Very rarely should a 1024 by 1024 be used, unless you're mapping a texture on a very large area. As a general rule, the smaller the surface size the smaller the texture size should be. If you put a small texture on a surface and it looks pixelated, then you need to go a size higher.
Large textures take up lots of memory. Using the correct texture sizes on your builds, creates a fast loading and more pleasurable environment for everyone without reducing the quality of the textures, pictures or photos seen.
You can re-size textures to the correct size needed, in graphics editing programs, such as Photoshop or Gimp.
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