Auto-Trace a Logo in After Effects
How After Effects' Auto-trace turns a logo image into masks, how it differs from converting true vector artwork to shape layers, and where its results fall short.
Contents
The short answer
After Effects can auto-trace a logo with its Auto-trace command, found in the Layer menu. It reads one channel of a layer, such as alpha or luminance, and generates masks along the edges it detects. The result is a set of editable mask paths inside your composition. You can animate, feather and reshape them, or use them to drive effects. It is not a finished vector logo file. After Effects is a motion and compositing tool, so it has no route for delivering traced logo artwork as a standalone vector asset for print or brand use.
Which approach is right depends on what you are starting with. If you have a raster logo, such as a PNG, JPEG or a screenshot, Auto-trace is the relevant tool. If you have genuine vector artwork from Illustrator, you usually don't need to trace at all, because After Effects can convert that artwork directly into shape layers.
Auto-trace versus converting vector artwork
| Approach | Starting material | What you get | Fidelity to the original |
| Layer > Auto-trace | Raster image or video layer (pixels) | Masks on the layer or on a new solid | An approximation; edges are inferred from pixels |
| Create Shapes from Vector Layer | Illustrator, PDF or EPS layer containing real vector paths | Shape layers with editable paths, fills and strokes | Follows the existing vector paths rather than re-deriving them |
The file extension does not tell you which situation you are in. An AI, EPS or PDF file can contain real paths, but it can also contain an embedded raster image or only a raster preview. Converting such a file to shapes will not produce clean outlines from the embedded pixels. To check, open the file in a vector editor and confirm that the logo is made of selectable paths before relying on it.
How Auto-trace works in practice
- Select the logo layer in the timeline, then choose Layer > Auto-trace.
- Set the time span. You can trace only the current frame or the whole work area. Tracing the work area creates mask keyframes, which matters for animated or video sources.
- Choose the channel to read. Alpha suits a logo on a transparent background. Luminance or a single color channel suits a logo on a solid background, and Invert is available if the logo is darker than its surroundings.
- Adjust the edge settings. Blur softens noise before tracing. Tolerance controls how closely the path follows the pixels. Threshold sets where an edge is detected. Minimum Area discards tiny specks. Corner Roundness controls how sharp the corners are.
- Optionally enable Apply to New Layer to place the masks on a separate solid, which leaves the original image untouched.
- Inspect the result at high magnification and clean up stray or overlapping masks by hand.
Tracing works best on a large, high-contrast source with flat colors. Small, compressed or anti-aliased images tend to produce lumpy curves, extra points and fragments, especially around thin strokes and small lettering. Multi-color logos are harder still, because Auto-trace reads one channel at a time rather than separating each color into its own shape.
Turning traced masks into shape layers
Auto-trace produces masks, not shape layers. If you want shape-layer features such as strokes, fills, Trim Paths or repeaters, you can copy a mask's path and paste it into the Path property of a shape layer. This keeps the traced geometry but gives you shape-layer controls. Logos with many separate parts need each piece handled this way, or a script that automates the step. Script options were not covered in the material behind this article.
Where the traced result falls short
An auto-traced outline approximates the logo; it does not reconstruct it. Typography is the clearest example. Traced letters become generic outlines that only resemble the original font, and fine details such as consistent stroke weight, precise curves and exact spacing are often lost. For on-screen motion work at the size you traced, this may be acceptable. For anything that must match the brand exactly, it usually is not. In that case, a better route is to obtain the official vector file or rebuild the logo carefully in a dedicated vector editor and then bring it into After Effects.
Rights are a separate question from technique. Being able to download or screenshot a logo does not grant permission to modify its artwork, recreate its fonts or use the trademark in your project. Confirm usage terms with the brand owner, or check the brand guidelines, before tracing or animating someone else's mark.
Gaps in this overview
No version-specific documentation, default values or test results were available for this article. Menu labels and options can change between After Effects releases, so check the documentation for your installed version. The comparisons above describe general, documented behavior rather than measured trace quality.