Ambience:

Press l to toggle the left light (Red)

Press r to toggle the right light (Blue)

Press t to toggle the top moving point light (Green)

Press m to toggle the mouse spot light (white light)

Move mouse around to use the mouse spot light

Press h to toggle the head-lamp spot light (White light)

Use a and d to move the camera when head-lamp spotlight is on

Hint: Lower the ambience to about 9 to fully appreciate the individual light sources in the scene