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Activity Forums Adobe After Effects custom pixel aspect ratio

  • custom pixel aspect ratio

    Posted by Anthony Dupsta on September 7, 2014 at 9:08 pm

    I received some interesting specs to follow for an unconventional billboard.
    My final delivery is 1216×214 with a non-square (.8525) pixel aspect ratio.
    So it basically is one 608×214 left eye and one 608×12 right eye. Put these two side by side and you have a single 1216×214 quicktime to deliver.
    This is how it will play, and how it will render out, 1216×214. I need to set up a .8525 pixel aspect ratio to get it to look proper when viewing on the 6,000 sq ft canvas.
    1) I have created this entire 1216×214 file in 1:1 square pixels already. Can I salvage this render?
    2) I now need to comply with these specs. 1216×214 .8525 (pixel aspect ratio, not screen aspect ratio.)

    I have not been able to successfully edit the AE interp TXT file. I am doing it wrong for sure.
    Or is there another way to create a .8525 pixel aspect ratio?

    Can anyone shed some light on this that has indeed customized a bizarre pixel aspect ratio in the past?
    This will be a one-off. Any help is appreciated.

    Antony Dupsta replied 11 years, 7 months ago 2 Members · 1 Reply
  • 1 Reply
  • Antony Dupsta

    September 8, 2014 at 7:59 pm

    Thanks Dave,
    Again thanks for the math on this, makes since. This helps for many future PARs I come across.

    I really wished I knew these specs prior to doing everything in square pixels.
    Now if I were to reverse engineer this, I am curious if you think it is salvageable, seems like starting with a square pixel comp would translate to the tops and bottoms being cropped off. But for kicks since I did not start with the proper PAR. I would need to blow it up right?
    Thanks again.
    Anthony-

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