STMapper 1.0 for Mac

Mac Utilities

Updated Aug 21, 2026

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STMapper is an After Effects tool built around ST maps, the colour coded images that describe how pixels should move to correct or create lens distortion. It lets you apply a distortion map to footage inside After Effects, so a plate can be warped to match a lens or a texture can be wrapped onto a surface. The approach is precise because the map carries the exact pixel positions, rather than relying on guesswork with manual sliders. Updated Aug 21, 2026.

Key Features

• Applies ST maps to footage inside After Effects
• Handles lens distortion and redistortion with pixel accurate mapping
• Supports texture warping onto moving or still imagery
• Works with standard ST map images supplied by tracking tools

How to Download

1. Open After Effects on your Mac and save your current project first.
2. Install the tool through the aescripts manager or copy it into the Scripts folder, then restart After Effects.
3. Import your footage and the ST map image into the same composition.
4. Apply STMapper, point it at the map layer and preview the warp before rendering.

System Requirements

STMapper needs a Mac with a recent version of macOS and a supported version of Adobe After Effects. It runs inside After Effects, so it uses the memory and processor of your Mac like a normal compositing project. Large maps benefit from a faster Mac.

FAQs

What is an ST map?

An ST map is an image where the red and green channels store the position each pixel should come from, describing a warp in a precise way.

Do I need a separate app to make the map?

Yes, ST maps are normally created by camera tracking or lens calibration tools, and STMapper applies them inside After Effects.