Problem with video-interlacing

[ToTheBack]

While I finished my music video awhile ago, when I've actually sat down to watch it on TV, I realized something: it's interlaced, and jaggy as hell. I don't know where this happened or what but my DP was shooting progressive and did all the P2 work and what-not, eventually giving it to me in a contents file. I've gotta deliver the full thing in a few days and I don't know what to do. I've asked the DP but he doesn't know. Is there something in Shake that can help or what?

[David Jimerson]

Did you edit and export as 24p?

[ToTheBack]

Nevermind, I found out what the issue was. For anyone who shoots a DVX and then graduates to HD, let this be a lesson to you: switch the editing mode to HD. I had it on miniDV apparently and it was editing like a DV project. Suddenly, the fast forwarding interlacing effects were that much smoother and things seemed to turn around

[ToTheBack]

Or at least it seems like it was fixed but when I exported it, what was smooth in the timeline is now appearing like it was in the playback in Quicktime. The project was shot in 720p with a 24p speed (with some slow motion too) and in easy setup, I set it up last night to dvcpro HD 720p24. I noticed the difference in the timeline because I had some fast forward effects that used to have jaggy lines everywhere but were gone. But when exporting them and watching the file, the interlacing is still there

[AwakenedFilms]

what is your sequence setting in your NLE? Are you editing with the right resolution, frame rate and progressive? Are you exporting with the right settings (again, resolution, frame rate and progressive)?

You may need to make a new sequence with the right settings and re-edit the clips to that sequence, rather than just changing the sequence on you already edited project.


Jason

[ToTheBack]

what is your sequence setting in your NLE? Are you editing with the right resolution, frame rate and progressive? Are you exporting with the right settings (again, resolution, frame rate and progressive)?

You may need to make a new sequence with the right settings and re-edit the clips to that sequence, rather than just changing the sequence on you already edited project.


Jason
While editing initially, I ended up having the easy setup as mini-DV since I forgot to change it before the editing started. When my DP alerted me to this, I made a new sequence, changed the settings to DVCPro HD 720p and put "sequence 1" (the original edited video) into the new sequence. I hit yes when it asked if I wanted to conform it. It plays smoothly on the timeline, and when I export with Quicktime Conversion, it usually sets it up automatically with the DVC Pro export setings. But when exported as a file to watch, it still shows up like the original video where interlacing was rampant

[AwakenedFilms]

My guess is the point:
"put "sequence 1" (the original edited video) into the new sequence"
is where the problem lies.

Are you editing on FCP? Did you have to render when it 'conformed'?

If so, its likely that the first sequence converted the 24p footage to 60i and the second sequence tried to convert it back to 24p. If my guess is right, you need to re-edit the clips into the new sequence (in FCP, press command+0 to reset the new sequences preset). An easy way to do this in FCP is by placing the playhead in the timeline overtop of a clip, press "F", open new sequence with proper preset and push "F10" to edit into the new sequence.


Jason

[Lez]

I would have duplicated the sequence and changed the settings....

I always found although i shoot 720p my DVD's need to be encoded upper field for PAL and lower field for NTSC...

Cheers

[David Jimerson]

If you shoot 24p, you should edit and export for DVD as 24p -- no interlacing at all; no field dominance. Just progressive frames.