• Adobe After Effects

  Jagged diagonal lines

  Posted by Marc Thomas on June 21, 2010 at 10:27 pm

  Hi, I’m working on D1/DV NTSC (o.9), 29.97 fps footage.

  From what I understand, AE de-interlaces my footage automatically… then I get aliasing (jagged lines) on diagonal lines.

  So my mission today was to find out how to avoid this “jagged line” problem.

  1) Is there a way to do this? What settings do I need to set?

  2) During my tests, I was exporting frames to compare my results and I got a BEAUTIFUL frame (ZERO jagged lines) that I exported after changing my composition settings to the “NTSC D1 Square Pixel” preset. But I was unable to duplicate my results. So I have no idea what else I changed besides the aspect ratio

  Any help/insight would be much appreciated 🙂

  Thanks in advance,

  Marc

  Marc Thomas replied 15 years, 10 months ago 34,333 Members · 1 Reply
• 1 Reply

• 

  Marc Thomas

  June 22, 2010 at 5:23 am

  I figured out that the exported frame with no jagged edges was produced by selecting “field render” >lower field first.

  So, is this what I’m supposed to do when I have interlaced footage that I want to export?…
  field render when exporting?

  If this is the case, I’m very surprised I haven’t read about this before as it seems like a pretty important piece of information.

  Thanks,

  Marc

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