What are the scale factors of the patterns?
Scale factors are different depending on the subject and intended use. Relatively few patterns for high altitude flight simulation have texels as large as square 30 feet. Typical patterns for armored vehicles and helicopter simulations have texels about 1 to 2 feet square. For infantry or driver training, a texel size of 2 or 3 inches is typical. Finally, there are some microtexture patterns with texels an inch or below. Texel size refers to what one pixel of the texture pattern (texel) represents in the real world.
