Setting Field Dominance

You can control the field dominance used in the final render. Creating a movie with fields means that every frame in the rendered movie is made up of two quickly alternating lines of picture information that update at twice the frame rate of the clip. For example, NTSC video plays at 30 frames per second, or 60 fields per second. These settings are usually determined by the type of video card you are using to play back movies or to write them to tape.

The field that is drawn on the monitor first is known as the even, or upper field. The field that is drawn on the monitor second is known as the odd, or lower field.

If you choose to use field dominance, you can also apply 3:2 pulldown to the rendered movie. 3:2 pulldown refers to the process used to transfer footage shot from 24 frames per second film to 30 frames per second NTSC video.

You can also choose to disregard field dominance completely and render in frames, creating whole pictures as opposed to video information.

To set field dominance:

1. On the Output Settings panel, select an option from the Fields list.



The following options are available.



Select:	To:
No Fields	Specify that every frame in the rendered movie consists of a complete frame, with no field interpolation.
Upper First	Generate the upper field (even) first.
Lower First	Generate the lower field (odd) first.





2. To re-apply 3:2 pulldown, select an option from the 3:2 Pulldown list.

A "W" indicates the placement of whole frames in the sequence, and an "S" indicates the placement of split frames in the sequence. For more information, see Removing 3:2 Pulldown.