def transformVector3sByMatrix(tetragrid, vector3s):
 if getIsIdentityTetragridOrNone(tetragrid):
  return
 for vector3 in vector3s:
  transformVector3Blindly(tetragrid, vector3)

def transformVector3sByMatrix ( tetragrid , vector3s ) : if getIsIdentityTetragridOrNone ( tetragrid ) : return for vector3 in vector3s : transformVector3Blindly ( tetragrid , vector3 )
transform the vector3s by a matrix .