Introduce 3:2 pulldown, Test field-rendering order – Adobe After Effects CS4 User Manual
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USING AFTER EFFECTS CS4
Rendering and exporting
Last updated 12/21/2009
2
Adjust the render settings as desired, and click Render.
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Render and export with the Render Queue panel
Introduce 3:2 pulldown
If you are creating output for film that’s been transferred to video, or if you want to simulate a film look for animation,
use 3:2 pulldown. Footage items that were originally film transferred to video and had 3:2 pulldown removed when
imported into After Effects can be rendered back to video with 3:2 pulldown reintroduced. You can introduce 3:2
pulldown by choosing one of five different phases. (See “
Remove 3:2 or 24Pa pulldown from video
Note: It is important to match the phase of a segment that had 3:2 pulldown removed if it will be edited back into the
video footage it came from.
1
In the Render Queue panel, select the render item and then click the underlined text next to the Render Settings
heading.
2
For Field Render, choose a field order.
3
For 3:2 Pulldown, choose a phase.
4
Select other settings as appropriate, and then click Render.
Chris and Trish Meyer provides an overview of 3:2 pulldown in an article on the
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Render and export with the Render Queue panel
Test field-rendering order
When you render a composition containing separated footage, set the Field Rendering option to the same field order
as your video equipment. If you field-render with the incorrect settings, the final movie may appear too soft, jerky, or
distorted. A simple test can determine the order in which your video equipment requires fields.
Note: The field order might get altered if you change the hardware or software of your production setup. For example,
changing your device control software or VCR after setting the field order can reverse your fields. Therefore, any time you
change your setup, test the field-rendering order.
The test takes about 15 minutes and involves creating two movie versions of the same composition (one rendered with
Upper Field First and one with Lower Field First), and then playing the movies to see which choice looks right.
1
Create a simple composition with the correct frame size and frame rate. Choose an NTSC or PAL preset in the
Composition Settings dialog box, and make the composition at least 3 seconds long.
2
Within the composition, make a layer that is a small rectangular solid. The layer can be any color as long as it
contrasts sharply with the composition background. You may want to add a title (such as “Upper Field First”) to
the solid to make identification of the movie easier.
3
Apply some fast movement to the solid using keyframes in its Position property. Set keyframes from the upper-left
of the Composition panel to the lower-right for 1 second.
4
Save the project, and then drag the composition to the Render Queue panel.