Render Settings
Render Settings Optionsá
Option
Selection
Description
Render Completion Sound

Sets a sound for your Avid application to activate once the rendering process is complete. This is useful when you are rendering multiple effects.

None
Disables the rendering completion sound. This is the default.

Render Sound
Sets the rendering completion sound to a customized sound.

System Beep
Sets the rendering completion sound to match the sound set for your operating system.
Motion Effects Render Using

Determines the processing method when existing motion effects are rendered or rerendered.

Original Preference
Causes effects to be rendered as whatever type they were when originally created.

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).
With JFIF resolutions, selecting this option causes the effect to render in the shortest amount of time. With DV and MPEG resolutions, the effect renders approximately as quickly as it would if you selected Both Fields as the rendering option.

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 shots without inter-field motion, NTSC or PAL film-to-tape transfers, and still shots. 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 will appear both before and after the corresponding Field 2.
The effect renders relatively quickly. For best results, you should 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 your Avid application considers all fields and does not disturb the original order of fields, the smoothest effect results.
Effects created using this option take the longest amount of time to render.

VTR-Style
Creates a second field for the effect by shifting selected video fields of the original media by a full scan line. This technique is similar to that used by high-quality professional video decks when playing footage at less than normal speed. This option also creates the motion effect at the field level rather than the frame level; however, 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.
The time needed to render effects created with this option is longer than the time for effects created using either Duplicated Field or Both Fields but similar to the time needed for Interpolated Field.
Timewarps Render Using

Select an option to determine the processing method when Timewarp effects are rendered or rerendered.

Original Preference
Duplicated Field
Both Fields
Interpolated Field
VTR-Style
These rendering options are the same as those for Motion Effects Render Using. See the preceding descriptions.

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

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

Sets a global override for effects that have HQ (Highest Quality) software implementations. You select the HQ implementation or the standard implementation for individual effects by clicking the HQ button in the Effect Editor.

Quality Set in Each Effect
Causes effects to render at the quality determined by the HQ setting in the individual effects. This is the default.

Standard Quality
Causes all effects to render with the standard implementation.

Highest Quality
Effects render with the HQ implementation, if one exists for a given effect. If an HQ implementation does not exist for a given effect, the effect renders with the standard implementation.
See Also
Adjusting Render Settings Options

Some features described in Help are available only in Avid Xpress Pro or Avid Xpress DV. For more information about Avid Free DV go to
www.avid.com.