There are several different types of lights available
in Director – they all offer different characteristics and are more
suitable in different situations:
This has the smallest number of parameters and is used primarily for
illumination. Ambient light is non-directional- it is omnipresent, affecting
all models in equal amounts. Basically it affects the overall brightness
of a scene. Consider it as a brightness/contrast control.
This can be used for illumination and modeling. They help create highlights,
midtone and shading. The best comparison in the real world is light
provided by the sun – the light is parallel and affects the scene
in a uniform manner.
- Point Lights
These are more like light bulbs – light rays emanate from the
point light in different directions, therefore the positioning of these
lights is of paramount importance.
- Spot Lights
Lights of this type cast their light from a particular point and within
the cone defined by the light's forward direction and spotAngle property.
The intensity of spot lights declines with distance from the light source
using the values defined.