Adobe After Effects CS3 - Manual (Page 604)

AFTER EFFECTS CS3
User Guide
599
Frame Blending On For Checked Layers renders frame blending only for layers with the Frame Blending switch
set, regardless of the composition’s Enable Frame Blending setting. (See “Apply frame blending to a layer” on
page 225.)
Field Render Determines the field-rendering technique used for the rendered composition. Choose Off if you are
rendering for film or for display on a computer screen. (See “Separate video fields” on page 71.)
3:2 Pulldown Specifies the phase of 3:2 pulldown. (See “Introduce 3:2 pulldown” on page 633.)
Motion Blur Current Settings uses the current settings for the Motion Blur layer switch and the Enable Motion
Blur composition switch. On For Checked Layers renders motion blur only for layers with the Motion Blur layer
switch set, regardless of the composition’s Enable Motion Blur setting. Off For All Layers renders all layers without
motion blur regardless of the layer switch and composition switch settings. (See “Use motion blur” on page 200.)
Time Span How much of the composition to render. To render the entire composition, choose Length Of Comp. To
render only the part of the composition indicated by the work-area markers, choose Work Area Only. To render a
custom time span, choose Custom. (See “Set the work area” on page 112.)
Frame Rate The sampling frame rate to use when rendering the movie. Select Use Comp’s Frame Rate to use the
frame rate specified in the Composition Settings dialog box, or select Use This Frame Rate to use a different frame
rate. The actual frame rate of the composition is unchanged. The frame rate of the final encoded movie is determined
by the output module settings. (See “Change frame rate” on page 53.)
Use Storage Overflow Determines whether rendering continues when the first assigned storage volume overflows.
If this option isn’t selected, rendering stops when the first assigned volume reaches capacity. (See “Overflow volumes
and segment settings” on page 629.)
Skip Existing Files Lets you re-render part of a sequence of files without wasting time on previously rendered frames.
When rendering a sequence of files, After Effects locates files that are part of the current sequence, identifies the
missing frames, and then renders only those frames, inserting them where they belong in the sequence. You can also
use this option to render an image sequence on multiple computers. (See “Render a still-image sequence with
multiple computers” on page 628.)
Note: The current image sequence must have the same name as the existing image sequence, and the starting frame
number, frame rate, and time span must be the same. You must render to the folder that contains the previously rendered
frames.
Work with output module settings
Output module settings apply to each render item and determine how the rendered movie is processed for final
output. Use output module settings to specify file format, output color profile, compression options, and other
encoding options for final output.
You can also use output module settings to crop or stretch a rendered movie; doing this after rendering is often useful
when you are generating multiple kinds of output from a single composition.
Output module settings are applied to the rendered output that is generated according to the render settings.
For some formats, an additional dialog box opens when you choose the format in the Output Module Settings dialog
box. You can modify these settings and use settings presets to specify format-specific options, such as compression
options.
You can apply more than one output module to each render item. This is useful when you want to make more than
one version of a movie at the same time. For example, you can automate the creation of a movie and its alpha matte,
or you can create high-resolution and low-resolution versions of a movie.