![]() Only these settings will make use of the DaVinci Neural Engine and tend to produce the best results, however, at the cost of being very processing-intensive. In Retime Process dropdown, choose Optical Flow, and for Motion Estimation choose Speed Warp.Select the clip and navigate to the Retime and Scaling menu in the Inspector panel.Alternatively, Speed Points can be added to dynamically change the clip speed. Open the Speed dropdown menu on the clip and lower the clip speed – in the case of the test clip, 50% was selected.Right-click the clip in the timeline and open Retime Controls or simply mark the clip and use the shortcut Cmd+R on Mac or Ctrl+R on Windows. Here are the straightforward instructions on achieving smooth slow motion with standard framerate footage: But DaVinci Resolve also provides the frame interpolation features which generates missing frames by merging adjacent frames or by using DaVinci Neural Engine AI to analyse surrounding frames and predict motion. These added frames are usually just copies of the nearest frames as this process requires the least amount of processing power. For example, any time you put a clip into a sequence with a higher framerate, the NLE will automatically stretch the clip to the framerate of the sequence and add the missing frames. but this was shot on the FS700 at 240 fps.Just about every modern NLE handles mixed framerates quietly, often without the user even knowing it. just shot 4 spots for a motorcycle shop in Brooklyn sledge-hammering helmets and igniting jackets. This one comes from a friend that works at Adobe, and made sense when he told me - basically the algorithm is using "anchor" frames to base the new frames on, and if it has an even number of frames between the two anchors you increase the possibility of a good slow down.Īgain, great job. ![]() Use evenly divisible numbers when slowing down your footage. Again, any unwanted movement will cause strain on the algorithm. Motion blur will definitely screw with the optical flow algorithm, and you can always add motion blur back if you need it to look more "cinematic" 30fps with a high shutter-speed will eliminate motion blur. If you are planning slow motion on a conventional camera, shoot at the highest frame rate possible, with the highest shutter speed possible. If smooth slow motion is a crucial plot element to your film, maybe wait to make that film until you have access to the tools necessary. If you have a slow motion shot in mind, and you can't record in higher framerates, and interpolating between frames in After Effects or Premiere doesn't look good, then don't use it. The best thing to do is not work outside of your limitations. Optical Flow or other interpolation also has its limitations, but can achieve decent results sometimes. I think the step-printing like effect of essentially playing 24fps back at 12fps is just fine if all you have is a 24fps camera. That's great for dreamlike effect, but it's not quite the smooth slow motion solution people would usually want. It's effectively playing a slower framerate, so by definition the motion won't be as smooth. "Non-jittery" is subjective, but while step printing or its digital equivalent don't introduce artifacts, I still think it looks jittery. Instead of frames playing in their normal sequence (1, 2, 3) they play as (1, 1, 2, 2, 3, 3). Each frame is essentially repeated once, as described in the video. ![]() That is essentially what the editing software is doing when you adjust the speed of a video to 50%.
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