(31): ERROR: 'glstate' : undeclared identifier 
(31): ERROR: 'light' : illegal vector field selection 
(31): ERROR: 'glstate' :  left of '[' is not of type array, matrix, or vector  
(31): ERROR: 'position' : illegal vector field selection 
(31): ERROR: 'xyz' : vector field selection out of range 
(33): ERROR: 'light' : illegal vector field selection 
(33): ERROR: 'glstate' :  left of '[' is not of type array, matrix, or vector  
(33): ERROR: 'diffuse' : illegal vector field selection 
(33): ERROR: 'xyz' : vector field selection out of range