With Linework you can easily render outlines and fill effects. Fast Outline effect for rendering simple outlines using vertex extrusion.
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Linework: Outlines and Edge Detection v1.5.3 (10 Dec 2025) (Latest version)
Linework: Outlines and Edge Detection v1.5.1
Linework: Outlines and Edge Detection v1.4.12 (30 Jul 2025)
Linework: Outlines and Edge Detection v1.4.9 (21 Mar 2025)
Linework: Outlines and Edge Detection v1.4.5 (25 Feb 2025)
Linework: Outlines and Edge Detection v1.4.1
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Description
With Linework you can easily render outlines and fill effects.
5+ years in the making, Linework is the culmination of years of experimentation that I have done with outline rendering in Unity. Made with love ❤️.
Documentation | Discord | Bluesky
✅ Multiple techniques.
There is no one-size-fits-all solution for outlines. Linework includes multiple techniques, balancing visual fidelity and performance.
✅ Performant.
Leveraging the power of the SRP batcher and the Unity 6 Render Graph, Linework is able to render multiple outlines within a single batch.
✅ Easy to use.
A considerable amount of development time has gone into finetuning the user experience for Linework so that it is as user-friendly as possible while still being flexible.
Features
Support for Unity 6, Unity 2022.3 and URP
Fast Outline effect for rendering simple outlines using vertex extrusion
Soft Outline effect for rendering soft and glowy outlines
Wide Outline effect for rendering consistent and smooth outlines
Edge Detection effect for rendering a full-screen outline effect that applies to the whole scene
Surface Fill effect for rendering screen-space fill effects and patterns
Use rendering layers to easily configure per-object outlines and stack effects
Custom editor UI and settings for easy authoring of outlines
Full source code included
Extensive documentation
Great support
Compatible with alpha cutout shaders
Compatible with vertex animation
Compatible with MacOS, Windows, WebGL and iOS (Android and VR untested)
Compatible with the DOTS Hybrid Renderer
Known Limitations
Linework is compatible with Unity 6 or Unity 2022.3 and the Universal Render Pipeline. Other combinations are not supported. More information at https://linework.ameye.dev/compatibility.
The character used in the promotional artwork is Jammo from Mix and Jam. It is not included but you can download it for free from the asset store. Thanks to the Mix and Jam team!
Technical details
Linework contains 5 effects to render outlines and fills. These can be added as renderer features to your URP renderer.
Fast Outline: Renders outlines by rendering an extruded version of an object behind the original object.
Soft Outline: Renders outlines by generating a silhouette of an object and applying a dilation/blur effect, resulting in smooth, soft-edged contours around objects.
Wide Outline: Renders an outline by generating a signed distance field (SDF) for each object and then sampling it. This creates consistent outlines that smoothly follows the shape of an object.
Edge Detection: Renders outlines by detecting edges and discontinuities within the scene, such as differences in *depth*, *normal vector*, *color*, or *custom input buffers*. This process creates a consistent outline effect that is applied uniformly across the entire scene, making it suitable for both external and internal object boundaries.
Surface Fill: Renders fills by rendering an object with a fill material.
Each effect has an extensive range of settings such as
– which objects the outline is applied to (using the rendering layer system)
– the visuals of the outline (thickness, color etc.)
– the behavior of the outline (where it should appear)
