Tip Time Tuesday!
A texture map with minimal spacing will save on memory and it will give optimal space for texture data.
So play a few games of Tetris before you pack your UVs!

seen from China
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seen from United States
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seen from Canada

seen from Canada
seen from Saudi Arabia

seen from Serbia

seen from United States
seen from United States

seen from United States
seen from China

seen from Canada
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seen from Australia
seen from United States

seen from Canada
seen from United States
seen from United States
Tip Time Tuesday!
A texture map with minimal spacing will save on memory and it will give optimal space for texture data.
So play a few games of Tetris before you pack your UVs!
http://www.aarondabelow.com/v1/pages/maxscript/maxscript-lazyUVWeditor.html
The Lazy UVW editor is a way to procedurally create seamless textures without having to unwrap uvs. It accomplishes this by using multiple uvw channels to cover pinching, stretching, or seams of the basic uvw mapping options, and the resulting map may be baked down to one channel if desired.