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Field-rendering considerations


    If vertical scaling, translation, rotation, or effects are applied to the image, the two fields of a video frame should be separated so that rendering can occur separately. If the field settings in the Interpret Footage dialog box are correct for the input footage and the field settings in the Render Settings dialog box are correct for the output device, you can mix footage items of different field orders in a composition. If either of these settings is incorrect, however, the frames will be in the correct order, but the field order may be reversed, resulting in jerky, unacceptable images. The Upper Field First option corresponds to Even Field First in an ElectricImage file. For more information, see Testing the field-rendering order.