NNRetime is an advanced retime plugin for Foundry’s Nuke that uses a state-of-the-art machine learning model to speed up or slow down footage by synthesising in-between frames.
Compared with existing optical-flow-based tools, it produces cleaner output with noticeably fewer artifacts. It handles high dynamic range values correctly and scales to 8K and beyond — staying memory-efficient even at large resolutions thanks to tiling support.

The comparisons below show NNRetime alongside a traditional optical-flow approach on the same footage:

Features

  • 2K on 8 GB VRAM
  • 4K on 16 GB VRAM
  • 8K and beyond via tiling
  • GPU-accelerated
  • Proper handling of high dynamic range values
  • Overscan and animated bounding-box support
  • Custom layer support, including AOVs and light groups
  • Runs on Linux (Nuke 13.1+), Windows (Nuke 14.1+), and macOS (Nuke 15.1+)
  • Nuke Indie support
  • Fully sandboxed and production-friendly — runs offline, no internet connection required

Documentation

You always get the latest documentation as a PDF in the download zips (in the “docs” folder). You can also access the NNCleanup documentation PDF directly using this link.

Knob reference

This info will come soon.

Downloads

All the downloads are available on the dedicated downloads page.

Licensing

To buy a license, please visit our shop. If you want to request a time limited trial license, please use the form on the Request a trial license page.