Mask Prompter 3 for After Effects

mask prompter plugin

Mask Prompter 3 v3.3.47 for After Effects & Premiere Pro – AI-Powered Automatic Masking Tool

Download Mask Prompter 3 v3.3.47 for Windows, a revolutionary AI-powered plugin that automatically creates precise masks around any object in your footage. Simply draw a rough outline or click on your subject, and Mask Prompter’s advanced AI instantly generates a clean, accurate mask—saving hours of manual rotoscoping .

Key Features of Mask Prompter 3 v3.3.47:

• AI-Powered Auto-Masking: State-of-the-art artificial intelligence analyzes your footage and creates precise masks around any subject with minimal user input
• Interactive Mask Refinement: Fine-tune results with intuitive brush tools to add or remove areas from the mask for perfect results
• Edge Detection Technology: Advanced edge detection preserves fine details like hair, fur, and translucent elements for professional-quality mattes
• Tracking Integration: Generated masks automatically track with your subject throughout the shot—no additional tracking steps required
• Multiple Output Options: Export masks as After Effects masks, alpha channels, or matte layers for flexible compositing
• Batch Processing: Apply automatic masking to multiple shots simultaneously for efficient workflow
• Real-Time Preview: See mask results update instantly as you refine your selection
• v3.3.47 Updates: Enhanced AI model with improved hair and edge detection, faster processing times, and expanded compatibility with the latest Adobe versions

Perfect For:

• VFX artists needing quick, accurate rotoscoping for complex shots
• Compositors extracting subjects from challenging backgrounds
• Editors creating quick masks for color correction and effects
• Content producers who need professional mattes without manual rotoscoping
• Anyone tired of spending hours on frame-by-frame masking

System Requirements:

• Adobe After Effects 2025, 2024, 2023, 2022
• Adobe Premiere Pro 2025, 2024, 2023, 2022
• Windows 10/11 (64-bit)
• GPU with 4GB+ VRAM recommended for optimal performance
• 4GB RAM minimum (16GB+ recommended)
• 200MB available disk space
• Internet connection for initial AI model download

Installation:
Copy the plugin file to your Adobe Common Plug-ins folder:

• Windows: C:\Program Files\Adobe\Common\Plug-ins\7.0\MediaCore\

Note: Mask Prompter 3 represents a major advancement in AI-assisted rotoscoping, dramatically reducing the time and effort required for complex masking tasks . Version 3.3.47 is the latest Windows release with enhanced AI models and improved edge detection .

Segment Anything 3 added! All models runs fully locally.

Rotoscope with AI based on text inputs, boxes around objects or points! ✂️

Mask Prompter 3 for After Effects and Premiere Pro

Features

Segment Anything 3

Use the power of Segment Anything 3 to create mattes easily.

Text based matting

Use natural language to describe the objects you want to key. Matting has never been that easy and flexible. Split prompts with dot to key multiple objects at once.

High-Quality Mattes

The refinement module creates high-detailed mattes easily.

Interactive

We applied some custom extensions to the underlying AI – therefore you’ll get interactive prompting

Stable on video

It’s very easy to get consistent results on video. The rivers matte was created with a single point placed on the river!

Multiple output modes

Output your mattes as overlays for visualization, as a black-white matte or as content with transparent alpha channel. This allows for versatile integration in your workflow and combination with other effects.

Detect custom objects

Draw rectangles around unlimited number of custom objects. (Example enhanced with DeepGlow.)

Tutorials

System Requirements

Documentation

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