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larsen20000

Q: How to double the frame rate in Shake?

I need to reinterlace some footage (screencapture) to make it fit into an interlaced project. How can I double the frame rate from 25p to 50p without frame blending for a videoclip in Shake? The next step should be to interlace it, which I guess simply can be done with the interlace node?

Posted on Feb 21, 2011 11:46 AM

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Q: How to double the frame rate in Shake?

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  • by stuckfootage,

    stuckfootage stuckfootage Feb 21, 2011 1:21 PM in response to larsen20000
    Level 4 (3,040 points)
    Feb 21, 2011 1:21 PM in response to larsen20000
    larsen20000 wrote:
    25p to 50p


    I'm confused. Don't you mean you want to go from 25p to 50i?
    You don't really want the screen capture to be faster, right?

    To go from 25 fps progressive to 25 fps interlaced (25i50),
    select the Timing tab on the FileIn node, and select Convert
    in the reTiming parameter. Set InputFrameRate to PAL (25),
    and you can leave the OutputFrameRate at default or set it to PAL.
    Expand the OutputFrameRate parameter to reveal a toggle called
    OutputFrameInterlaced. Click to turn on. Set the OutputFrameDominance
    to be odd (PAL). Scoll down to see the Deinterlacing parameter.
    You can probably leave it set to Fast, but you can get better
    results with much more processing time by setting it to Good.

    Connect FileIn to FileOut.

    In the Fileout node, choose Quicktime and select codec options,
    and choose a preset–for example, DVCPRO-PAL–and set the
    scan option to Interlaced.

    Render.
  • by Patrick Sheffield,

    Patrick Sheffield Patrick Sheffield Feb 22, 2011 7:25 AM in response to larsen20000
    Level 7 (29,175 points)
    Feb 22, 2011 7:25 AM in response to larsen20000
    I'm confused as to why anyone would want to interlace a screen capture...

    Patrick

  • by larsen20000,

    larsen20000 larsen20000 Feb 22, 2011 7:28 AM in response to Patrick Sheffield
    Level 1 (0 points)
    Feb 22, 2011 7:28 AM in response to Patrick Sheffield
    25p to 50i..
    I need to interlace screencapture because it should be used in the same timeline as interlaced camera footage.. The screencapture looks really bad so I thought I´d give it a try!
  • by Patrick Sheffield,

    Patrick Sheffield Patrick Sheffield Feb 22, 2011 7:52 AM in response to larsen20000
    Level 7 (29,175 points)
    Feb 22, 2011 7:52 AM in response to larsen20000
    Look, you can tell FCP that it's interlaced - it doesn't matter. If you want to use it in an interlaced timeline, click on your clip, ⌘9, from the field dominance popup, change it to match your timeline.

    Bingo. Interlaced. All it means is that FCP will now deal with the clips in fields when resizing/processing. It doesn't matter if the original frame is progressive.

    Patrick

  • by larsen20000,

    larsen20000 larsen20000 Feb 22, 2011 8:02 AM in response to Patrick Sheffield
    Level 1 (0 points)
    Feb 22, 2011 8:02 AM in response to Patrick Sheffield
    Ahh, thanks! Maybe you have a better answer than deinterlacing all footage (takes a lot of time) for this problem too?
    http://discussions.apple.com/thread.jspa?threadID=2761314
  • by Patrick Sheffield,Helpful

    Patrick Sheffield Patrick Sheffield Feb 22, 2011 9:00 AM in response to larsen20000
    Level 7 (29,175 points)
    Feb 22, 2011 9:00 AM in response to larsen20000
    Too bad you can't shoot 720p...

    If your target is the web, you should de-interlace the footage and work in a non-interlaced timeline.

    Personally, I prefer Graeme's smart de-interlacer from Nattress film effects. And you only apply it to the footage you use in your timeline, rather than de-interlacing everything first...

    btw, people were helpful in that other thread, you might show some gratitude... FYI:

    http://discussions.apple.com/help.jspa#answers

    Patrick

  • by larsen20000,

    larsen20000 larsen20000 Feb 22, 2011 9:33 AM in response to Patrick Sheffield
    Level 1 (0 points)
    Feb 22, 2011 9:33 AM in response to Patrick Sheffield
    Thanks a lot, I´ll check out the Nattress plugin!

    (Not finished with the other thread..)