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How to Achieve Smooth Slow‑Motion Effects Easily

7/1/2025

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Team CapsAI

How to Achieve Smooth Slow‑Motion Effects Easily

Adobe Premiere Pro Optical Flow
built-in interpolation for professional results.

  • Import your clip into a sequence, right-click → “Speed/Duration”
  • Set your “Speed” to desired percentage, check “Time Interpolation” → “Optical Flow”
  • Render the segment (Enter) to see smooth in-between frames
  • Export via File → Export → Media



DaVinci Resolve Frame Interpolation

high-quality slow-mo using motion estimation.

  • Drag your clip into the timeline, right-click → “Change Clip Speed”
  • Set “Speed” to your target, tick “Optical Flow” under Retime Process
  • Choose “Enhanced Better” for the Retime Engine in the Inspector
  • Render on the Deliver page with your preferred codec



Final Cut Pro Optical Flow

macOS-optimized for silky-smooth retiming.

  • Select clip, press Cmd + R to show the retime bar
  • Click the pop-up menu → “Automatic Speed” → choose “Optical Flow”
  • For variable slow-mo: blade segments in the retime bar and adjust each section’s speed
  • Click Share → Master File to export



Twixtor Plugin (After Effects / Premiere)

industry standard VFX plugin for frame interpolation.

  • Install Twixtor, then apply the “Twixtor” effect to your layer
  • Set “Speed” to your desired % and adjust “Motion Sensitivity” for clean edges
  • Use mask tools to isolate subjects if ghosting appears
  • Export via your host app’s render queue



Slow-Mo Video Editor (Mobile)

Android/iOS app with simple interpolation.

  • Install “Slow-Mo Video Editor” from your app store
  • Load your clip, drag the speed slider to 0.25× or 0.5×
  • App auto-creates frames; tap “Save” to export to your Camera Roll



FFmpeg with minterpolate

CLI method for automated frame-doubling.

ffmpeg -i input.mp4 -vf "minterpolate='mi_mode=mci:fps=60'" -r 60 output.mp4

  • Adjust fps= to twice (or more) original framerate for smoother playback
  • Use -preset slow for better interpolation quality



SVP (SmoothVideo Project)

real-time frame interpolation for any video player.

  • Download SVP from smoothvideoproject.com and install
  • Open your video in SVP’s player; it auto injects extra frames on the fly
  • Adjust the interpolation strength slider for performance vs. smoothness

Pick the workflow that matches your platform and project needs, and start creating cinema-quality slow-motion in minutes!

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