    You may change the size of an object or texture pattern by adding the
 'scale' parameter.  It consists of the keyword 'scale' followed by a vector
 or a single float value.  If a vector is used, terms of the vector specify
 the amount of scaling in each of the x, y, and z directions.  If a float
 value is used, the item is uniformly scaled by the same amount in all direc-
 tions.

    Scale, is used to 'stretch' or 'squish' an element.  Values larger than 1
 stretch the element on that axis.  Values smaller than one are used to
 squish the element on that axis.  Scale is relative to the current element
 size.  If the element has been previously re-sized using scale, then scale
 will size relative to the new size.  Multiple scale values may used.
