Duda sobre Motion Effect

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 created 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 created using Both Fields render relatively quickly. For best results, use evenly divisible frame rates with this option.

Interpolated Field
Creates a second field for the effect by combining scan line pairs from the first field in the original media. This option calculates the motion effect at the field level rather than the frame level. Because the application considers all fields and does not disturb the original order of fields, the smoothness of the rendered effect is second only to FluidMotion. This method is best for video-originated material or film-originated material transferred at 24 fps.
Timewarp effects created using Interpolated Field or VTR-Style render less quickly than Both Fields but more quickly than Blended Interpolated, Blended VTR, or FluidMotion.

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 some slight jitter 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 created using Interpolated Field or VTR-Style render less quickly than Both Fields but more quickly than Blended Interpolated, Blended VTR, or FluidMotion.

Blended Interpolated
Blends, or averages, pixels from the original frames or fields to create intermediate frames or fields. For example, at 25% speed, the application creates three blended images between outgoing Image A and incoming Image B. The first blended image weights the pixels from Image A at 75% and Image B at 25%. The second blended image weights the pixels from Image A at 50% and Image B at 50%. The third blended image weights the pixels from Image A at 25% and Image B at 75%. Objects in motion from Image A to Image B appear to fade out of Image A and fade in to Image B.
Timewarp effects created using Blended Interpolated or Blended VTR render less quickly than Interpolated Field or VTR-Style but more quickly than FluidMotion.

Blended VTR
First creates a second field for the effect by shifting selected video fields of the original media by a full scan line. Then blends, or averages, pixels from the original frames or fields to create intermediate frames or fields. For example, at 25% speed, the application creates three blended images between outgoing Image A and incoming Image B. The first blended image weights the pixels from Image A at 75% and Image B at 25%. The second blended image weights the pixels from Image A at 50% and Image B at 50%. The third blended image weights the pixels from Image A at 25% and Image B at 75%. Objects in motion from Image A to Image B appear to fade out of Image A and fade in to Image B.
Timewarp effects created using Blended Interpolated or Blended VTR render less quickly than Interpolated Field or VTR-Style but more quickly than FluidMotion.

FluidMotion Draft
This setting allows you to view the motion that would be created by the FluidMotion setting, but at a lower quality. Use this setting if you are working in vector edit mode and performance is too slow. Use the FluidMotion setting for final output.

FluidMotion
Analyzes the motion between outgoing Image A and incoming Image B, and interpolates intermediate frames pixel-by-pixel. The motion generated by FluidMotion is the smoothest of all the rendering options.
Timewarp effects created using FluidMotion are the slowest to render.
When you step through a sequence with a Timewarp effect, the editing application can take a noticeable amount of time to update the Effect Preview monitor. For better performance, use FluidMotion Draft while you work on your sequence.
To save time while rendering the Timewarp effect, select one of the other rendering options to rough out your sequence and use FluidMotion only when you are satisfied with the overall sequence.This option is not available in the Render Setting dialog box in the Settings list because it is best used while you are working with a Timewarp effect.You must render FluidMotion effects before combining with any other effects, especially any other time-based effects such as FluidColorMap.

Código:

http://www.youtube.com/watch?v=KJFKHhlv27s