italink/unrealclientprotocol/unreal-modeling-primitives

Name: unreal-modeling-primitives
Author: italink

Claude Code and agent skill by italink/unrealclientprotocol

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By italink
Coding
italink/unrealclientprotocol
Skills/unreal-modeling-primitives/SKILL.md
Updated 17 Sep 2026
Version 1.0.01 version recorded

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GeometryScript 图元创建与建模函数。当用户要求创建 Box、Sphere、Cylinder 等基础形状，或进行拉伸、旋转体、壳体等建模操作时使用。

Install

npx vskill@latest install italink/unrealclientprotocol/unreal-modeling-primitives

SKILL.md

建模 — 图元与建模

前置条件：先阅读 unreal-modeling。

库

库	CDO
图元	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshPrimitiveFunctions`
建模	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshModelingFunctions`

TargetMesh 为 UDynamicMesh* 路径字符串。Debug 省略。

MeshPrimitiveFunctions — 主要函数

函数	关键参数	说明
`AppendBox`	`PrimitiveOptions`, `DimensionX/Y/Z`, `StepsX/Y/Z`	追加长方体
`AppendSphere`	`PrimitiveOptions`, `Radius`, `StepsX`, `StepsY`	追加球体（经纬细分）
`AppendSphereBox`	`PrimitiveOptions`, `Radius`, `Steps`, `Subdivisions`	追加球体（立方体映射细分）
`AppendCylinder`	`PrimitiveOptions`, `Radius`, `Height`, `RadialSteps`, `HeightSteps`, `bCapped`	追加圆柱
`AppendCapsule`	`PrimitiveOptions`, `Radius`, `LineLength`, `HemisphereSteps`, `CircleSteps`	追加胶囊体
`AppendCone`	`PrimitiveOptions`, `BaseRadius`, `TopRadius`, `Height`, `RadialSteps`, `HeightSteps`, `bCapped`	追加圆锥/圆台
`AppendTorus`	`PrimitiveOptions`, `InnerRadius`, `OuterRadius`, `CrossSectionSteps`, `CircleSteps`	追加环面
`AppendDisc`	`PrimitiveOptions`, `Radius`, `AngleSteps`, `SpokeSteps`, `StartAngle`, `EndAngle`, `HoleRadius`	追加圆盘/扇形
`AppendRectangleXY`	`PrimitiveOptions`, `DimensionX`, `DimensionY`, `StepsWidth`, `StepsHeight`	追加 XY 平面矩形
`AppendRoundRectangleXY`	`PrimitiveOptions`, `DimensionX`, `DimensionY`, `CornerRadius`, `StepsWidth`, `StepsHeight`, `RoundSteps`	追加圆角矩形
`AppendLinearStaircase`	`PrimitiveOptions`, `StepWidth`, `StepHeight`, `StepDepth`, `NumSteps`, `bFloating`	追加楼梯
`AppendSpiralStaircase`	`PrimitiveOptions`, `StepWidth`, `StepHeight`, `InnerRadius`, `SpiralAngle`, `NumSteps`, `bFloating`	追加螺旋楼梯
`AppendSweepPolyline`	`PrimitiveOptions`, `PolylineVertices`(FVector2D 数组), `SweepPath`, `bLoop`, `StartScale/EndScale`	沿路径扫掠多段线截面
`AppendSweepPolygon`	`PrimitiveOptions`, `PolygonVertices`, `SweepPath`, `bLoop`, `bCapped`, `StartScale/EndScale`	沿路径扫掠多边形截面
`AppendSimpleSweptPolygon`	`PrimitiveOptions`, `PolygonVertices`, `SweepPath`, `bLoop`, `bCapped`, `StartScale/EndScale`	简化版扫掠
`AppendRevolvePolygon`	`PrimitiveOptions`, `PolygonVertices`, `RevolutionOptions`	旋转体（绕轴旋转多边形截面）
`AppendSimpleExtrudePolygon`	`PrimitiveOptions`, `PolygonVertices`, `Height`, `HeightSteps`, `bCapped`	简单拉伸多边形
`AppendVoronoiDiagram2D`	`PrimitiveOptions`, `VoronoiSites`(FVector2D 数组), `Bounds`, `BoundsExpand`	追加 2D Voronoi 图
`AppendDelaunayTriangulation2D`	`PrimitiveOptions`, `Vertices`(FVector2D 数组), `ConstrainedEdges`	追加 Delaunay 三角化
`AppendBoundingBox`	`TargetMesh`, `Box`, `PrimitiveOptions`	追加包围盒 mesh

注意：AppendSweepPolygon、AppendRevolvePolygon、AppendSimpleExtrudePolygon 的 PolygonVertices 参数类型为 FGeometryScriptSimplePolygon，需要用 MeshOperationLibrary.MakeSimplePolygon 桥接。SweepPath 参数类型为 FGeometryScriptPolyPath，需要用 MakePolyPath 桥接。

MeshModelingFunctions — 主要函数

函数	关键参数	说明
`ApplyMeshOffset`	`TargetMesh`, `Options`	整体偏移（膨胀/收缩）
`ApplyMeshShell`	`TargetMesh`, `Options`	生成壳体（双面偏移）
`ApplyMeshLinearExtrudeFaces`	`TargetMesh`, `Options`, `Selection`	沿法线线性拉伸选中面
`ApplyMeshOffsetFaces`	`TargetMesh`, `Options`, `Selection`	偏移选中面
`ApplyMeshInsetOutsetFaces`	`TargetMesh`, `Options`, `Selection`	内缩/外扩选中面
`ApplyMeshBevelSelection`	`TargetMesh`, `Options`, `Selection`	倒角选中区域
`ApplyMeshPolygroupBevel`	`TargetMesh`, `Options`, `GroupLayer`	按 Polygroup 边界倒角
`ApplyMeshDisconnectFaces`	`TargetMesh`, `Selection`	断开选中面（使其成为独立岛）
`ApplyMeshDuplicateFaces`	`TargetMesh`, `Selection`	复制选中面

结构体与枚举

`FGeometryScriptPrimitiveOptions`

字段	类型	默认值	说明
`PolygroupMode`	`EGeometryScriptPrimitivePolygroupMode`	`PerFace`	Polygroup 分组方式
`bFlipOrientation`	bool	`false`	翻转法线方向
`UVMode`	`EGeometryScriptPrimitiveUVMode`	`Uniform`	UV 生成模式

`EGeometryScriptPrimitivePolygroupMode`

值	说明
`PerFace`	每个面一个 Polygroup
`PerQuad`	每个四边形一个 Polygroup
`PerShape`	整个形状一个 Polygroup
`SingleGroup`	所有图元共享一个 Polygroup

`EGeometryScriptPrimitiveUVMode`

值	说明
`Uniform`	均匀 UV
`ScaleToFill`	缩放填满 0-1

`FGeometryScriptRevolveOptions`（用于 `AppendRevolvePolygon`）

字段	类型	默认值	说明
`RevolveDegrees`	float	`360`	旋转角度
`DegreeOffset`	float	`0`	起始角度偏移
`Steps`	int	`24`	旋转步数
`bReverseDirection`	bool	`false`	反向旋转
`bHardNormals`	bool	`false`	硬边法线
`HardNormalAngle`	float	`0`	硬边角度阈值
`bProfileAtMidpoint`	bool	`false`	截面在步数中点
`bFillPartialRevolveEndcaps`	bool	`true`	非 360° 时封口

`FGeometryScriptMeshOffsetOptions`（用于 `ApplyMeshOffset`）

字段	类型	默认值	说明
`OffsetDistance`	float	`1.0`	偏移距离
`bFixedBoundary`	bool	`false`	固定边界
`Iterations`	int	`0`	平滑迭代次数
`SolveSteps`	int	`0`	求解步数
`SmoothAlpha`	float	`0.1`	平滑系数
`bReprojectSmooth`	bool	`false`	平滑后重投影
`BoundaryAlignmentWeight`	float	`10.0`	边界对齐权重

`FGeometryScriptMeshLinearExtrudeOptions`（用于 `ApplyMeshLinearExtrudeFaces`）

字段	类型	默认值	说明
`Distance`	float	`1.0`	拉伸距离
`Direction`	`EGeometryScriptLinearExtrudeDirection`	`FaceNormal`	拉伸方向
`DirectionVector`	FVector	`(0,0,1)`	自定义方向（当 Direction=Fixed 时）
`bSingleDirection`	bool	`true`	单向拉伸

`EGeometryScriptLinearExtrudeDirection`

值	说明
`FaceNormal`	沿面法线
`SingleDirection`	沿固定方向

JSON 示例

追加球体：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshPrimitiveFunctions","function":"AppendSphere","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","PrimitiveOptions":{"PolygroupMode":"PerFace","bFlipOrientation":false,"UVMode":"Uniform"},"Radius":50,"StepsX":16,"StepsY":16}}

追加圆柱：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshPrimitiveFunctions","function":"AppendCylinder","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","PrimitiveOptions":{},"Radius":25,"Height":100,"RadialSteps":16,"HeightSteps":1,"bCapped":true}}

偏移（膨胀）：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshModelingFunctions","function":"ApplyMeshOffset","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","Options":{"OffsetDistance":5.0,"bFixedBoundary":false,"Iterations":3}}}

发现

对上述 CDO 路径调用 DescribeObject 可查看当前引擎版本的完整函数列表和参数签名。

Security

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Source

SKILL.md in the repositoryCheckingSkills/unreal-modeling-primitives/SKILL.md

Popularity

Repository stars: 114
Repository forks: 14
7-day trend score: 24

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Install

SKILL.md

建模 — 图元与建模

库

MeshPrimitiveFunctions — 主要函数

MeshModelingFunctions — 主要函数

结构体与枚举

FGeometryScriptPrimitiveOptions

EGeometryScriptPrimitivePolygroupMode

EGeometryScriptPrimitiveUVMode

FGeometryScriptRevolveOptions（用于 AppendRevolvePolygon）

FGeometryScriptMeshOffsetOptions（用于 ApplyMeshOffset）

FGeometryScriptMeshLinearExtrudeOptions（用于 ApplyMeshLinearExtrudeFaces）

EGeometryScriptLinearExtrudeDirection

JSON 示例

发现

Security

Quality evaluation

Source

Popularity

Works with

`FGeometryScriptPrimitiveOptions`

`EGeometryScriptPrimitivePolygroupMode`

`EGeometryScriptPrimitiveUVMode`

`FGeometryScriptRevolveOptions`（用于 `AppendRevolvePolygon`）

`FGeometryScriptMeshOffsetOptions`（用于 `ApplyMeshOffset`）

`FGeometryScriptMeshLinearExtrudeOptions`（用于 `ApplyMeshLinearExtrudeFaces`）

`EGeometryScriptLinearExtrudeDirection`