2009

Table Of Contents
In addition to the light fog effect you created in this lesson, you can also
create Glow, Halo, and Lens Flare light effects with a similar workflow. To
see these effects, the light must point toward the camera view.
In some situations, you might want to prevent a light from striking a
surface in its path. For example, your scene shows a person leaning against
a wall in an outdoor night setting. You might want to light the wall with
dark, shadowy spotlights, and the persons face only with a brighter, soft
spotlight. Because the face and the wall are near each other, all the
spotlights currently strike both objects. You can use Mayas light-linking
capability to isolate the lighting.
Create shadows in the scene by having the lights cast shadows.
The Maya software renderer has two types of shadows: Depth Map Shadows
and Ray Traced Shadows. In this lesson, you created Depth Map Shadows,
which are less realistic than Ray Trace shadows but much faster to render.
Ray Traced Shadows are mainly useful in scenes where the audience is
focusing on the shadow region, for instance, a close-up of a still setting.
Ray Traced Shadows are also useful if you want to cast shadows more
accurately for transparent objects. To reduce rendering time, use Ray Traced
Shadows only when necessary.
Create and animate an additional camera from which to view the scene.
If you have previous experience with photography, youll recognize the
names of various camera attributes displayed in the Attribute Editor while
a camera is selected. You can modify the attribute values to suit your
requirements.
The values for certain camera attributes (for example, Film Aspect Ratio)
might cause a rendered image to not match the region bounded by the
Resolution Gate. In such cases, you can display the Film Gate (View >
Camera Settings > Film Gate) to see the region that will be rendered.
You can animate a camera along a path; for example, to create the illusion
of flying through mountainous terrain. This type of animation involves
the use of Animate > Motion Paths > Attach to Motion Path (from the
Animation menu set). If you additionally want the motion path-animated
camera to focus on a stationary or moving object, you need to use Create
> Cameras > Camera and Aim. If you want the camera to move in a looping
path, (for example, a roller coaster) you need to use Create > Cameras >
Camera, Aim, and Up.
Before you batch render a scene, you must select the camera you want to
use for rendering. Select Window > Rendering Editors > Render Settings
to display the Render Settings window. In the File Output section, select
the camera from the Camera option.
Beyond the lesson | 439