It was quite clear that spherical and cylindrical mapping expected a center
of 000

Hmm.. what to do if "translate<>" vector is ignored in within texture
braces?

The same center vector is used for planar mapping, to move a part and back
again, only actual center is of little use in this case.


Q?
Does the "translate<>" vector belong within the image_map or pigment braces?
(after thought)

all points, center vectors, and xy of texture-scale-vectors are scaled
together.

#declare wingt =
texture {
pigment {
image_map { png "wingt" map_type 0 } }
finish { ambient 0.85 specular 0.3 diffuse 0.1 }
scale < 15,12 , 1.0 >
rotate < 90 , 0 , 0 >
}

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