png 120 120 hw2bulb1g.png color 1 0.5 0.5 normal 2 0 -1 xyz 1 0 0 color 0.5 1 0.5 normal -1 2 -1 xyz -1 1 1 color 0.5 0.5 1 normal -1 -2 -1 xyz -1 -1 0 xyz 0 0 0 color 1 1 1 bulb -1 trig 1 2 3