Apple Motion 4 - Manual (Page 1226)

Parameters in the Inspector
Light Type: A pop-up menu that lets you choose from four categories of light.
• Ambient: An ambient light emits light in all directions, illuminating all objects in the
scene from all directions equally. This type of light has no position and no representation
in the Canvas. Additionally, ambient lights are the only lights that do not affect
highlights. The most common use for ambient lights is to add an overall fill effect or
color cast.
Note: There is no global ambience property in Motion, so you may have to add an
ambient light to prevent total blackness.
• Directional: A directional light emits parallel rays of light in a specified direction from
a source located at an infinite distance. Only the rotation of this light has bearing on
its effect. A directional light icon, in conjunction with the transform controls, can be
used to assist in visualizing the direction the light is traveling in a scene. The directional
light appears as a cylinder with one end removed. The circle represents the back of the
light, and the lines indicate the direction in which the light is traveling.
Directional light Example of a directional light
1226 Chapter 18 3D Compositing