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Precomp Anchor Repo

by James Hoff·Workflow

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Why we like it

Earns its place in the aescripts library for handling anchor and position alignment across a wide range of layer types, from parametric shapes to track mattes.

What is Precomp Anchor Repo?

Precomp Anchor Repo is a script from James Hoff for After Effects that aligns anchor points and positions to a layer, composition, or parent area. It detects areas of precomps, masks, track mattes, expressions, and more.

Content areas can be calculated with two methods: Corner mode uses a layer's corners, while Vertex mode uses its vertices. It works across layer types including solids, shapes, text, nulls, footage, and adjustment layers, and handles parametric shapes such as ellipses, rectangles, polygons, and stars, with some roundness and inner-radius parameters unsupported. Track mattes and the Set Matte effect are calculated from track matte vertices and edges rather than the alpha channel. 3D layers are skipped by default but can be force-allowed in Settings.

Shape layer contents including stroke width, merge paths, trim paths, and skew transforms are supported, along with masks read as Bezier curves in vertex mode. Shortcuts cover Use Parent, Slide, and Ignore Precomp. Precomp Anchor Repo is listed here as free, and a trial version is available on the developer's page. It supports After Effects from CC 2015 through 2026.

Who is Precomp Anchor Repo best for?

Precomp Anchor Repo is best for after Effects artists positioning anchor points and layer positions relative to precomps, masks, track mattes, and expressions.

How much does Precomp Anchor Repo cost?

Precomp Anchor Repo is completely free to download and use.

Key features

  • Corner and Vertex calculation modes, using a layer's corners or vertices to determine the area
  • Detects areas of precomps, masks, track mattes, and expressions
  • Track mattes and the Set Matte effect calculated from track matte vertices and edges, not the alpha channel
  • Parametric shape support for ellipses, rectangles, polygons, and stars, with some roundness and inner-radius parameters unsupported
  • Shape layer contents including stroke width, merge paths, trim paths, Bezier curves, and skew transforms
  • 3D layers skipped by default, with a force-allow option in Settings
  • Shortcuts for Use Parent, Slide, and Ignore Precomp

Tags

#After Effects#anchor point#precomp#track mattes#masks#workflow#James Hoff#aescripts

Frequently asked questions

What After Effects versions does Precomp Anchor Repo support?

Precomp Anchor Repo supports After Effects from CC 2015 through the 2026 release, including CC 2015.3, CC 2017, CC 2018, CC 2019, and the annual 2020 through 2025 versions. That broad range covers most modern installations, so it should fit both current and older projects. The most recent update, version 1.01, upgraded the underlying framework and fixed a bug that caused the script to fail to run in After Effects 2022. If you're on a specific release, you can confirm behaviour by trying the trial version from the developer's page before committing.

How does Precomp Anchor Repo calculate content areas?

Precomp Anchor Repo offers two calculation methods for determining an area. Corner mode uses a layer's corners, while Vertex mode uses its vertices. It works across layer types including solids, shapes, text, nulls, footage, and adjustment layers, and reads masks as Bezier curves in vertex mode. For track mattes and the Set Matte effect, the area is calculated from track matte vertices and edges rather than the alpha channel. Parametric shapes such as ellipses, rectangles, polygons, and stars are supported, though some roundness and inner-radius parameters are not.

Does Precomp Anchor Repo work with 3D layers and plugins?

Precomp Anchor Repo skips 3D layers by default, though you can force-allow them in Settings; the developer notes that 3D adjustments are coming in the future. On the plugin side, it works with Animation Composer and most plugins that create 3D or layer effects. Among layer effects, the only supported one is Set Matte. Because plugin compatibility can vary, the developer recommends downloading the trial version to check your specific setup before purchasing, so you can confirm it handles the effects and plugins in your project.

Is Precomp Anchor Repo free?

Precomp Anchor Repo is listed here as free. A trial version is also available, which the developer suggests downloading to check plugin and effect support before purchasing. For current licensing details and to grab the latest build, check the developer's page on aescripts. The script's most recent version is 1.01, released on April 30, 2022, which upgraded the framework and fixed a bug affecting After Effects 2022. Trying it on your own project is a reliable way to see how it fits your workflow.

Alternatives to Precomp Anchor Repo

Also in Workflow for After Effects.

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