TYPE: SOP
TITLE: Sort SOP

Sort allows you to sort points, vertices and primitives in different 
ways.  Sometimes the primitives can be arranged in the desired order, but 
the point order is not. There are many possible combinations.

Parameters:

Point / Primitive
    Point/Primitive Sort  - Type of sort to perform.
    Seed                  - Seed used for random number generator   /pointseed
                            in Random sort.                         /primseed
    Offset                - Amount to shift point/primitive order   /pointoffset
			    in Shift sort.                          /primoffset
    Point                 - Position to reference when sorting by  
                            proximity to point.                   
                            /pointproxx /pointproxy /pointproxz
                            /primproxx  /primproxy  /primproxz
    Vector Object         - Sort along a vector specified by 
                            object's xform
    Vector                - Specify an arbitrary vector to sort along
                            /pointdirx /pointdiry /pointdirz
                            /primdirx /primdiry /primdirz
    Expression            - Specifies an expression to sort by.  Each
                            object is reordered so the elements who
                            evaluated to a higher expression value
                            will be found after those with a lower
                            value.  Elements with equal expression
                            value maintain their relative position.
                            /pointexpr /primexpr
