Speed Ramp Optical Flow
Create ultra-smooth cinematic speed ramps on macOS using GPU optical flow (RIFE / CoreML).
Export ProRes or H.265 (HEVC), then finish your edit in your NLE.
Download the macOS app.
Optical flow smooths motion while preserving cinematic ramp feel.
Minimum requirement: Apple Silicon (M1) with 8GB RAM. Exports can be slow on longer clips, but the optical flow quality is worth the wait.
Already purchased? Download with access key
Purchase includes a 7-day access key, and up to 3 downloads. If you lose the installer later, email support and we’ll help you with a new key.
What You Get
- Speed ramp curve editor (Option/Alt+click to add keyframes)
- GPU optical flow export (CoreML RIFE)
- ProRes + HEVC exports
- Ultra / 4K model selection (where supported)
- Project resolution export and source-resolution export
Notes
- Export is video-only (audio is preview-only inside the app)
- Very high-resolution models can be slow on some Macs
- Best results: render the ramp first, then do final edit in your NLE
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Montage Room Desktop timeline: ProRes optical-flow clips preview at
lower resolution because the editor does not support native ProRes playback yet.
Export from Desktop stays full quality — the soft timeline look is preview-only.
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🎞️ Open the Web Editor
Install
- Unzip the download, then drag CinematicLab-1.0.0-arm64.app into Applications.
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If macOS says the app is damaged / to move it to Trash (and there is no “Open Anyway”), open Terminal and paste this command, then press Return:
xattr -dr com.apple.quarantine "/Applications/CinematicLab-1.0.0-arm64.app"
If your app name in Applications is different, change the name inside the quotes to match exactly.
- Open the app from Applications.
- Still blocked? Check System Settings → Privacy & Security for an allow option (some Macs don’t show “Open Anyway”).