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Footage jitter after re-import from AFX into NLEs
Everytime a uncompressed AVI or QT movie is exported to AFX for compositing and re-import into our FCP or Pinnacle Liquid 6 Pro NLE . We discover two annoying artifacts on the movie file. Considerable drop in image quality and jitter on fast moving images. We also discovered that whenever DVE such as flip etc. is created inside AFX, playing them back on computer monitor look perfect but when view on TV monitor all DVEs will appear jitter. We have tried fixing such problems by twisting the de-interlace flicker but the problems persist. Was it because we are doing the editing on PAL or there are other filters and setting need to be twisted. For example, we always have the field render set in off mode. This has been a long time unsolved issue and any of your help is deeply appreciated.
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1 Reply
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You are probably not field-separating and field-rendering.
Select your footage in the project window and from the File menu choose Footage Interpretation->Main
In the dialog select Upper or Lower field first (Lower for NTSC D1 and DV, Upper for PAL D1, Lower for PAL DV). When you render, turn on field rendering and choose the same setting.Also, to ensure quality be sure you render your comp at the proper size of your media. For example in NTSC a lot of users like to work at 720×540 so they see square pixels. This is fine, but these users need to remember to render this 720×540 comp inside a 720×486(D1)/720×480(DV) comp. If you were in PAL you could work at 768×576 then nest that into a 720×576 comp for rendering.
— Wes Plate
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