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ONYX Ai Matte for OFX hosts

Bela Beier
27.03.2026
ONYX Ai Matte targets fast alphas in OFX apps with prompts, tracking, trimap refinement, and published RTX only system limits.
A sleepy cat curled up on a soft surface, detailed interface elements from a video editing software visible on the right, displaying color correction settings and playback tools.

ONYX builds ONYX Ai Matte as a GPU-accelerated matte extraction tool for segmentation, tracking, and mask refinement inside OFX-compatible hosts. It targets hair and fur edge work and shots with more than one subject, and it frames the speed and quality claims as marketing claims. Under the hood, it uses Meta SAM3 and VitMatte models, packaged via ONNX in FP16 and accelerated with NVIDIA CUDA 12.6 and TensorRT 10.x.

An editing timeline interface displaying color grading tools, with a close-up of a character in a dramatic scene featuring fire and smoke in the background. Elements include source and mask layers for visual effects.

Prompts, trimaps, and tracking

The UI exposes five pipeline modes: box or point prompts with auto track, box or point prompts with manual track, text prompts with auto track, mask prompts with auto track, and a trimap workflow using VitMatte with manual track. Point and box workflows let you set foreground and background points and a bounding box. The interface supports up to 32 points.

Text prompt mode detects objects that match your text. If it finds multiple matches, one foreground point picks the instance. Mask prompt mode takes a rough input mask and uses it as the prompt for a refined segmentation. The trimap path expects white foreground, black background, and a grey uncertainty band for edge refinement. Tracking integrates directly into the prompt workflows. In Nuke, the box center can be driven by expressions so a tracker can push it through the shot while size stays consistent. You still need to test any new tool before it goes into production, especially when the alhpa becomes the single point of failure.

A close-up of a cat's face on the left, with a blurred background. On the right, an interface showing text detection tools with a highlighted text field displaying the word 'cat' and various control sliders underneath.
A partially obscured image of a cat's silhouette in white against a black background, appearing fuzzy and blurred. The image is displayed within a digital editing software interface, showcasing various editing tools and options on the right side.

Hosts and compatibility

The published host list includes DaVinci Resolve 18 and later, Fusion Studio 18 and later, and Nuke 13 and later. It also positions the plug-in as working in any OFX compatible app, like Autodesk Flame specifically.

System requirements and what is not supported

Minimum requirements list Windows 10 64 bit, an NVIDIA RTX GPU, 6GB of VRAM, 16GB of RAM, and 8GB free space. Windows 11 64 bit is also supported. Text prompts require 8GB of VRAM or more. The baseline GPU callout is an NVIDIA RTX 2060 or better with SM 7.0 or higher. Not supported: GTX 1000 series, AMD Radeon, and Intel Arc.

A person with long hair in a pink sweater is standing on a hill, looking at a sunset over a cityscape, with a small dog sitting beside them, surrounded by green grass and trees.
A silhouette of a person and a blue dog against a contrasting black background, with the person partially obscured in white, creating a striking visual contrast.

Trial, licensing, and pricing

A full featured 7-day trial is offered with no credit card required. Licenses are sold as lifetime, one time payments with no subscription, plus free minor updates. Pricing is published in euros as lifetime tiers on the official pricing page. Indie costs €80 for one machine node locked. Studio 3 costs €180 for three machines node locked. Studio 10 costs €450 for ten machines node locked. Studio 10 also includes priority support.


https://onyxofx.com/

Bela Beier Author