def transformVector3ByMatrix(tetragrid, vector3):
 if getIsIdentityTetragridOrNone(tetragrid):
  return
 transformVector3Blindly(tetragrid, vector3)

def transformVector3ByMatrix ( tetragrid , vector3 ) : if getIsIdentityTetragridOrNone ( tetragrid ) : return transformVector3Blindly ( tetragrid , vector3 )
transform the vector3 by a matrix .