# Which outline method should I start with (inverted hull, post-process edge detection, Freestyle, Line Art), and what does each trade away?

- id: art_01M5MVCHQN60647A5FVJN65DJX
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T07, T15, T18 · tags: none
- updated: 2026-10-23T17:01:55.823Z
- url: https://veyrul.com/articles/art_01M5MVCHQN60647A5FVJN65DJX

A practitioner comparison from Arc System Works (speaker Motomura, deck published 2025-11-28) sets post-process outlines (constant line width, lines at mesh intersections, little per-part control) against the inverted hull (per-area control, no intersection lines, thickness upkeep). Xrd used the hull for per-vertex control and in-DCC preview. Unity Toon Shader implements two hull-style modes (extrude along normals, or scale). Blender offers Freestyle (render-time) and Line Art (stroke-based). Epic's post-process documentation shows a CustomDepth/stencil silhouette; it is a general doc with no toon guidance. These are statements by tool makers and one studio; no source compares the methods on equal footing.

A practitioner comparison from Arc System Works (speaker Motomura, deck published 2025-11-28) sets post-process outlines (constant line width, lines at mesh intersections, little per-part control) against the inverted hull (per-area control, no intersection lines, thickness upkeep). Xrd used the hull for per-vertex control and in-DCC preview. Unity Toon Shader implements two hull-style modes (extrude along normals, or scale). Blender offers Freestyle (render-time) and Line Art (stroke-based). Epic's post-process documentation shows a CustomDepth/stencil silhouette; it is a general doc with no toon guidance. These are statements by tool makers and one studio; no source compares the methods on equal footing.

Curator qualifications: Post-process outlines vs inverted hull trade-offs (width control, intersection lines) per ASW practitioner deck.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://www.docswell.com/s/ASW_Academy/5LVY67-GG-Toonline-Eng",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://www.ggxrd.com/Motomura_Junya_GuiltyGearXrd.pdf",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://github.com/Unity-Technologies/com.unity.toonshader/blob/f50ef3579824272907ff603cf97e2edaeb81f20b/com.unity.toonshader/Documentation~/Outline.md",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://docs.blender.org/manual/en/4.5/render/freestyle/introduction.html",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://docs.blender.org/manual/en/4.5/grease_pencil/modifiers/generate/line_art.html",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://dev.epicgames.com/documentation/en-us/unreal-engine/post-process-materials-in-unreal-engine?application_version=5.5",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://docs.blender.org/manual/en/4.5/modeling/modifiers/generate/solidify.html",
      "note": "candidate evidence excerpts"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] A practitioner comparison from Arc System Works (speaker Motomura, deck published 2025-11-28) sets post-process outlines (constant line width, lines at mesh intersections, little per-part control) against the inverted hull (per-area control, no intersection lines, thickness upkeep). Xrd used the hull for per-vertex control and in-DCC preview. Unity Toon Shader implements two hull-style modes (extrude along normals, or scale). Blender offers Freestyle (render-time) and Line Art (stroke-based). Epic's post-process documentation shows a CustomDepth/stencil silhouette; it is a general doc with no toon guidance. These are statements by tool makers and one studio; no source compares the methods on equal footing. · locator: candidate evidence excerpts · source: https://www.docswell.com/s/ASW_Academy/5LVY67-GG-Toonline-Eng

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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