transform
// object/texture/etc. transformation
// do a predeclared translate/rotate/scale combo
// e.g.:
#declare Leaf_Orientation =
transform {
scale 4.0
rotate 30*z
translate 2*y
}
transform {
Leaf_Orientation // transform an object
//scale 0.5
//rotate 45*x
//transform {...} // optional further transforms
}