• Adobe After Effects

  24p to 2997 what is correct method

  Posted by Phil Coulloudon on September 22, 2011 at 6:07 pm

  I have 24p tiff image sequences and need to convert to ProRes4444 at 29.97fps. The content is animation.

  What is the correct procedure for re-timing these in AE CS5?

  Thanks,
  Phil

  Ben G unguren replied 14 years, 11 months ago 2 Members · 3 Replies
• 3 Replies

• 

  Phil Coulloudon

  September 22, 2011 at 9:43 pm

  Thanks Dave…I will look at the resources you supplied.

  I want to note that I am not ever going to tape, staying in file based environment. Editing in both MC and FCP at 1080p/2997.

  This is character animation source that will eventually be synced with sound. Do I still need to select the 23.976 instead of 24 for the Interpret footage and add 3:2? I have been selecting 24 and changing composition settings to 29.97 and rendering out ProRes.

  Thanks,
  Phil
• 

  Phil Coulloudon

  September 23, 2011 at 4:34 am

  [Dave LaRonde] “I’d like to know why you simply can’t animate at 29.97p and be done with it. You’ll save yourself a boatload of problems.”

  The animation exists as true 24p and will not be changed. I do not want to introduce interlacing into a file-based 1080p/2997 (if that is what choosing fields and adding 3:2 will do) or am I misunderstanding.

  Phil
• 

  Ben G unguren

  September 23, 2011 at 12:17 pm

  I see your problem — interlacing (like 3:2 pulldown) is only a good idea when the delivery format is a television.

  Dropping the 24 into a 30fps comp will cause every 5th frame to be duplicated, which creates choppy motion. In the end, it’s your call, however — there are times when somewhat-choppy motion has been an acceptable option compared to the alternatives.

  Another possibility comes to mind, however: the Timewarp filter. Drop your 24fps sequence in a 30fps comp, apply Timewarp, then change the speed parameter to 80% to go from 24fps to 30fps. The filter will use the existing image data to create new frames (using a kind of morphing technology). The success of this process largely depends on what the existing images are doing — it’s best to apply the filter and see what happens.

  Ben Unguren
  Motion Graphics & Editing
  http://www.mostlydocumentary.com

  Some contents or functionalities here are not available due to your cookie preferences!

  This happens because the functionality/content marked as “Vimeo framework” uses cookies that you choosed to keep disabled. In order to view this content or use this functionality, please enable cookies: click here to open your cookie preferences.

Reply to this Discussion! Login or Sign Up