#MATERIAL FOR GROUP 1:
newmtl material_for_first_triangle
Kd 1 0 1      # Magenta
Ks 1 1 1      # White
Ns 50         # Very shiny.
 
MATERIAL FOR GROUP 2:
newmtl material_for_second_triangle
Kd 1 0 0        # Red
Ks 0 1 0        # Green
Ns 0            # No shine (completely dull).
