I added These:

myGraniteNode = Blend(WHITE, Granite(myNoiseNode), graniteamount)

I got and Error - graniteamount undefined.

def ApplyBruisePair(s, cx, cy, br, separation, maxblend, graniteamount):
      ApplyBruise(s, cx - separation/2, cy, br, maxblend, graniteamount)
      ApplyBruise(s, cx + separation/2, cy, br, maxblend, graniteamount)

I got and Error -
MATMATIC Script Error: invalid syntax (line 190)
Traceback (most recent call last):
  File "C:Program FilesCurious LabsPoser 5RuntimePythonmatmaticcompiler.py", line 232, in processScript
  File "", line 190
     x = U - cx
     ^
 SyntaxError: invalid syntax
!! Matmatic stopping because of error !!
------ MATMATIC COMPILER DONE ----

, Add(0.5).labelled("PM:BruiseL Blend"), Add(0.5).labelled("PM:BruiseR Blend")

I can understand the graniteamount undefined. Could I go like this?
graniteamount = (22/7)

No clue why I got and error for x = U - cx unless I need to have a cx1 and cx2

Thanks for all of your time and help.
DR

"That government is best which governs the least, because its people discipline themselves."
Thomas Jefferson