[Matt Wafaie]

Thank you for responding,

I know what a 3:2 pulldown is. I understand exactly how and why it works. I’m not in need of a film lesson, I’ve been shooting and editing film for some time. I’m in need of after effects help because that is what I’m currently learning. I have not composited footage shot on film in the past. A week ago I suggested 3:2 pulldown as a possible problem…

“Maybe there is something I’m missing in interpretation or comp settings. Could it be a Pulldown problem? The beta footage originated on film and I used SSWWW. Perhaps this is the issue?”

M@

but I operated under the assumption that this was not actually the problem because of this message.

“You only need to remove pulldown if you want to work with complete frames at 23.976 fps. Otherwise, just separate fields (LFF most likely) and work in 29.97 fps.”

Which I assumed meant that it only affected my footage to remove pulldown if I wanted to edit in a 24fps sequence.

So I said…

[Footbaggin] “What should happen to the video if you do what I’ve done and Remove Pulldown when you don’t need to?”

and was told…

Then you’d have a 23.976 fps clip running in a 29.97 fps comp. Some of the frames of the footage will be repeated, some will not. It’s generally not a good thing to do.

And I have to keep 29.97fps comps because I’m compositing in DVCAM footage on top of the film. Hence my problem. I have done my research. I will figure out the problem.

[Matt Wafaie]

won’t that affect the image’s movement? Will that only affect the MB or also the other footage elements being rendered.

[Matt Wafaie]

Oh I understand all of that fully. I just ask because I had rendered a project without interlacing which took 8 hours. I rendered it again last night with interlacing settings corrected and at 12 hours it was only about 3/4 of the way done. I thought, either this machine is dying or there’s an extra process happening here. I just wanted to see if my suspicion was correct.

Thanks.

M@

[Matt Wafaie]

do you mean the mask stays as it is by not scaling or the mask stays as it is in proportion to the image therefore scaling as well?

[Matt Wafaie]

weird that it’s only reds. Have you tried changing your color settings? It could be a YUV RGB incompatibility.

[Matt Wafaie]

Have you exported any of your timeline in AVID? Export a test section lossless and see if it’s just appearing that way on your monitor as red is a notoriously poor NTSC color.

[Matt Wafaie]

I run AVID express pro HD on a dual core 64 AMD athlon without a hitch. Had to upgrade the video card though. The system runs better than my dual pentium 4 at my office. Very clean.

M@

[Matt Wafaie]

That makes perfect sense. Thanks. That could very much explain why some of the camera movements appear to STROBE. Thanks for the info.

M@

[Matt Wafaie]

Did you move the car’s position within AE? Or did you just use a shot in which the car moves and roto it but leaving the footage in one position? If you did not animate the car’s movement it will not work to use the motion blur, it will only blur your masks but not the footage right?

[Matt Wafaie]

Cool, I’ll give that a shot. Thanks. Just out of curiosity, do you have any idea if this strobing effect could be a result of removing the pulldown at 30fps? What should happen to the video if you do what I’ve done and Remove Pulldown when you don’t need to?