petermercell

petermercell / CorridorKey-for-Nuke

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CorridorKey for Nuke

21
0
100% credibility
Found Mar 11, 2026 at 19 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
C++
AI Summary

A plugin for the Nuke video editing software that enables fast AI-based green screen keying to extract clean foregrounds and alpha mattes preserving fine details like hair and motion blur.

How It Works

1
📰 Discover the Tool

You hear about a special plugin for Nuke that uses AI to perfectly remove green screens, keeping hair, blur, and edges looking natural.

2
📥 Download Files

Grab the plugin files from the sharing site to get started on your computer.

3
🧠 Prepare AI Model

Download the original AI green screen tool and run a simple preparation to create a file your computer can use.

4
âš¡ Speed It Up

Turn the AI model into a turbo-charged version that runs blazing fast on your high-end graphics card.

5
🔧 Add to Nuke

Follow the guide to build and place the plugin right into your Nuke software so it's ready to use.

6
🎥 Key Your Footage

Connect your green screen video to one input, a rough outline mask to the other, pick the speed file, and let it work its magic.

✨ Perfect Composites

Celebrate as you get crystal-clear foreground colors and smooth mattes, ready to layer perfectly into your scenes without losing details.

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Star Growth

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AI-Generated Review

What is CorridorKey-for-Nuke?

This C++ plugin ports CorridorKey, an AI green screen keyer for Nuke, accelerating it with TensorRT for GPU inference inside compositing pipelines. It takes a green screen RGB plate and a rough alpha hint as inputs, outputting straight sRGB foreground color plus a linear alpha matte that preserves hair, motion blur, and semi-transparent edges—fixing issues where traditional keyers like Keylight fail. Users get a native Nuke node under the AI menu with knobs for engine file, resolution matching (up to 2048x2048), output modes, and matte inversion.

Why is it gaining traction?

It delivers production-ready speed (~300ms per frame at 2048x2048 FP16 on RTX A5000) without leaving Nuke, outperforming CPU-based alternatives or manual rotos on tricky greenscreen shots. The hook is physically accurate unmixed FG and alpha from a coarse hint, plus easy post-composite workflow: sRGB-to-linear then premultiply. Devs dig the one-time model export to ONNX/TensorRT pipeline despite the setup.

Who should use this?

Nuke compositors at VFX studios handling complex greenscreen with fine details like wispy hair or fast motion. Pipeline TD's integrating AI keying into Linux/NVIDIA farms (24GB+ VRAM, CUDA 13+). Skip if you're on Windows, low-RAM machines, or doing simple keys.

Verdict

Promising for CorridorKey in Nuke workflows, with excellent README build guide, but 19 stars and 1.0% credibility signal early maturity—prototype it first. Grab it if greenscreen woes hit your shots.

(198 words)

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