Conversion to 60fps with smoothing, how to avoid fading between scenes.

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    • #72000767
      Avatarcorvo4791
      Participant

      Hello.

      I need to convert some videos from 24 to 60fps and I need to make them smooth.
      Previously I used AFTER EFFECTS with Twixtor but now I’m using a software called HYBRID cause it is faster. With both methods, the problem is the same: when the scenes change, the smoothing process makes the 2 scenes to fade one into the other.
      Is there a no-manual way to make the cut between 2 different takes to be clean and sharp? A way to make the software recognize when the new frame is too much different by the previous one (so when there’s a cut between 2 different scenes) and then ignore the smoothing process. I don’t know if I was clear (I’m Italian, sorry, and maybe my English is not the state of the art).
      Which methods do you use to make the same operation on your computers? I’m a newbie with this procedure and I’d like to improve it.
      Thanks.

      • This topic was modified 1 year, 5 months ago by Avatarcorvo4791.
    • #72000771
      Avatarpaulears
      Participant

      I don’t think you can because you are creating new frames from half the required number, so an awful lot of duplication is going on. Is the software actually interpolating half way frames from those either side? Doesn’t that take a very long time? It sounds like Hybrid does create new frames. If it cannot decide that if a frame is totally different and switch off the interpolation at the point, then it’s an edit job to manual pull out the blurred frame.However – at 60fps, I’m surprised you can detect a single mix frame!

      • #72000774
        Avatarbobspez
        Participant

        There are actually no mixed frames. I took a 1080P 24fs 16 second clip and rendered it at 60 fps in Priemiere Pro. I then went through both clips a frame at a time. In the 24fps clip there was movement (a changed image) on every frame. On the 60fps clip each frame was followed by a duplicate of the frame and at intervals several duplicates (as many as 4 or 5 duplicates) to create the 60 frames out of 24 frames each second. I think the multiple duplicates might be where the jumpiness comes in.

        • This reply was modified 1 year, 5 months ago by Avatarbobspez.
    • #72000773
      Avatarbobspez
      Participant

      There’s no reason to convert a 24fps video to 60fps. You will degrade the video. The reason to shoot at 60fps is to capture more data. But at 24 fps your data is already captured. All you are doing is repeating frames and speeding up the frames as they are viewed by your eye. There is no purpose or benefit to doing this.

    • #72000776
      Avatarcorvo4791
      Participant

      Thanks for the answers but it seems both of you know less than me about smoothing.
      Hybrid creates new frames making an interpolation between frames and I can assure you that the result is long away from being awful. There are no repeated frames at all.
      Anyway, I hope somebody more expert could help me.

      • #72000777
        Avatarbobspez
        Participant

        I think you answered your own question. If the Hybrid software is making an interpolation between frames, then the cut is also interpolation, (i.e a dissolve). You could just cut the frames out that make up the dissolve. There shouldn’t be more than a few frames for each cut.

      • #72000779
        Avatarbobspez
        Participant

        Did you google this softwre on Youtube. Here’s a video by a guy who seems to be expert and who answers user’s questions on problems they are having with the software. He goes through the settings in detail and has answered those who don’t get good results.

        • This reply was modified 1 year, 5 months ago by Avatarbobspez.
    • #72000789
      Avatarcorvo4791
      Participant

      Thanks. I will give it a look.
      Doing the cut manually is really annoying, that’s why I was looking for a software solution.

    • #72000902
      Avatarpaulears
      Participant

      I’m still very confused – as we said, you are creating new frames – either by simple duplication, or by blending two. It’s the same trick we’ve used for a while now when coding – if the frame is the same, then throw it away, only process the differences – this time it’s just the reverse. Interpolation works great on fast moving subjects where there is considerable difference between frames, so a new half-way house frame works, and makes sense. I can’t see how automation would work because it would have to decide if it should create a new frame because there would be a jump, or not create a new frame because a jump was intended? I’m also intrigued now what the purpose of the up conversion is? I’m guessing but it’s something fast? Sport, cars, racing etc?? Would it be easier to go back to the edit and process each clip, especially if you have to go back to the editor for any cure?

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