enabled - 1 if lighting is enabled; otherwise nil (1nil)
omni - 1 if omnidirectional lighting is enabled; otherwise 0 (number)
dirX - Coordinate of the directional light in the axis perpendicular to the screen (negative values place the light in front of the model, positive values behind) (number)
dirY - Coordinate of the directional light in the horizontal axis (negative values place the light to the left of the model, positive values to the right) (number)
dirZ - Coordinate of the directional light in the vertical axis (negative values place the light below the model, positive values above (number)
ambIntensity - Intensity of the ambient light (0.0 - 1.0) (number)
ambR - Red component of the ambient light color (0.0 - 1.0); omitted if ambIntensity is 0 (number)
ambG - Green component of the ambient light color (0.0 - 1.0); omitted if ambIntensity is 0 (number)
ambB - Blue component of the ambient light color (0.0 - 1.0); omitted if ambIntensity is 0 (number)
dirIntensity - Intensity of the directional light (0.0 - 1.0) (number)
dirR - Red component of the directional light color (0.0 - 1.0); omitted if dirIntensity is 0 (number)
dirG - Green component of the directional light color (0.0 - 1.0); omitted if dirIntensity is 0 (number)
dirB - Blue component of the directional light color (0.0 - 1.0); omitted if dirIntensity is 0 (number)
