Lighting

Mode allows to specify which lights should be used and how standard lights should be combined with lights from file.

No Lighting	No lights
World Lights Only	Use lights defined in 3d scene. If there are no lights, everything may be black.
Standard Lights	Use on of predefined color schemes. For list of possible schemes see list below
World and Standard	Use both: world lights and predefined lights. Predefined light scheme is defined in Standard Lights menu or combo box.
Auto	Use world lights (lights defined by 3d file) when possible. If there are no light sources in 3d file, standard lights will be used.

Simple	Creates 4 directional lights with fixed direction and one directional light pointed from camera origin to camera target.
PDF White	Three blue-grey infinite lights, no ambient color
PDF Day	Three light-grey infinite lights, no ambient color
PDF Night	One yellow, one aqua, and one blue infinite light, no ambient color
PDF Hard	Three grey infinite lights, moderate ambient color
PDF Primary	One red, one green, and one blue infinite light, no ambient color
PDF Blue	Three blue infinite lights, no ambient color
PDF Red	Three red infinite lights, no ambient color
PDF Cube	Six grey infinite lights aligned with the major axes, no ambient color
PDF CAD	Three grey infinite lights and one light attached to the camera, no ambient color
PDF Headlamp	Single infinite light attached to the camera, low ambient color (0.1,0.1,0.1)

More detailed description of PDF like colors may be found in PDF specification (13.6.4.5 3D Lighting Scheme Dictionaries)