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Table Of Contents
Rendering Options for Timewarp Effects
226
Rendering Options for Timewarp Effects
For information on selecting a rendering option, see “Using the Motion Effect Editor” on
page 217.
Option Description
Duplicated Field Displays a single field in the effect. For two-field media, this reduces the information
stored by half because it drops one field of the image, resulting in a lower quality image.
For single-field media, this is usually the best choice because of its speed. (The other
options do not improve effect quality for single-field media.)
Timewarp effects that you create using Duplicated Field render in the shortest amount of
time.
You can use this option to remove unwanted field motion in interlaced material brought
into a progressive project.
Both Fields Displays both fields in the effect. For example, the first two frames of a half-speed (50%)
slow-motion effect repeat the original Frame 1 (both fields) twice. This option is good
for clips without inter-field motion, for NTSC or PAL film-to-tape transfers, and for
stills. With footage that includes inter-field motion, this method might result in minor
shifting or bumping of the image because it disturbs the original order of fields: a Field 1
appears both before and after the corresponding Field 2.
Timewarp effects that you create using Both Fields render relatively quickly. For best
results, use evenly divisible frame rates with this option.
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In some circumstances, Adaptive Deinterlace Source is available as a further
processing option. For more information, see “Using Adaptive Deinterlacing” on
page 221.
VTR-Style Creates a second field for the effect by shifting selected video fields of the original media
by a full scan line. This option also creates the motion effect at the field level rather than
the frame level, but because pixels are not filtered, the final image is sharper than that
created by the Interpolated Field option. The image might display slight jittering at
certain speeds. This technique is similar to that used by high-quality professional video
decks when playing footage at less than normal speed.
Timewarp effects that you create using Interpolated Field or VTR-Style render less
quickly than Both Fields but more quickly than Blended Interpolated, Blended VTR, or
FluidMotion.