italink/unrealclientprotocol/unreal-modeling-query

Name: unreal-modeling-query
Author: italink

Claude Code and agent skill by italink/unrealclientprotocol

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GeometryScript 网格查询与空间操作。当用户要求获取网格信息（顶点数、包围盒、拓扑状态）、空间查询（最近点、射线求交、包含测试）或采样时使用。

Install

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

SKILL.md

建模 — 查询与空间

前置条件：先阅读 unreal-modeling。

库

库	CDO
查询	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshQueryFunctions`
空间	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshSpatialFunctions`
采样	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshSamplingFunctions`
包含	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_ContainmentFunctions`
比较	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshComparisonFunctions`
测地线	`/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshGeodesicFunctions`

提示：简单的 mesh 概览可直接用 MeshOperationLibrary.GetMeshSummary，一次调用返回所有基础信息。以下函数用于更精细的查询。

查询函数 — 全局信息

函数	out 参数	说明
`GetMeshInfoString`	`InfoString`	可读的 mesh 信息字符串
`GetIsDenseMesh`	`bIsDense`	ID 空间是否无间隙
`GetMeshBoundingBox`	返回 `FBox`	包围盒
`GetMeshVolumeArea`	`SurfaceArea`, `Volume`	表面积和体积
`GetMeshVolumeAreaCenter`	`SurfaceArea`, `Volume`, `CenterOfMass`	表面积、体积、质心
`GetIsClosedMesh`	`bIsClosed`	是否闭合
`GetNumOpenBorderLoops`	`NumLoops`	开放边界环数量
`GetNumOpenBorderEdges`	`NumEdges`	开放边界边数量
`GetNumConnectedComponents`	`NumComponents`	连通分量数
`GetMeshHasAttributeSet`	`bHasAttributeSet`	是否有属性集

查询函数 — 计数与 ID

函数	out 参数	说明
`GetVertexCount`	返回 int	顶点数
`GetNumVertexIDs`	`NumVertexIDs`	MaxVertexID
`GetHasVertexIDGaps`	`bHasGaps`	顶点 ID 是否有间隙
`GetNumTriangleIDs`	`NumTriangleIDs`	MaxTriangleID
`GetHasTriangleIDGaps`	`bHasGaps`	三角形 ID 是否有间隙
`GetNumUVSets`	`NumUVSets`	UV 通道数
`GetNumExtendedPolygroupLayers`	返回 int	扩展 Polygroup 层数

查询函数 — 属性存在性

函数	out 参数
`GetHasTriangleNormals`	`bHasNormals`
`GetHasVertexColors`	`bHasColors`
`GetHasMaterialIDs`	`bHasMaterialIDs`
`GetHasPolygroups`	`bHasPolygroups`

查询函数 — 元素数据

函数	关键参数	说明
`GetVertexPosition`	`VertexID`	返回顶点位置。out：`bIsValidVertex`
`GetTrianglePositions`	`TriangleID`	返回三角形三个顶点位置。out：`bIsValidTriangle`
`GetTriangleIndices`	`TriangleID`	返回三角形的三个顶点 ID
`GetTriangleFaceNormal`	`TriangleID`	返回面法线
`GetTriangleNormals`	`TriangleID`	返回三个角的法线
`GetTriangleUVs`	`TriangleID`, `UVSetIndex`	返回三个角的 UV
`GetTriangleVertexColors`	`TriangleID`	返回三个角的顶点色
`GetVertexConnectedTriangles`	`VertexID`	返回顶点关联的三角形 ID 列表
`GetVertexConnectedVertices`	`VertexID`	返回顶点的邻居顶点 ID 列表

查询函数 — 批量获取

函数	说明
`GetAllTriangleIDs`	返回所有三角形 ID 列表
`GetAllTriangleIndices`	返回所有三角形的顶点索引列表
`GetAllVertexIDs`	返回所有顶点 ID 列表
`GetAllVertexPositions`	返回所有顶点位置列表

注意：批量函数返回 FGeometryScriptIndexList、FGeometryScriptTriangleList、FGeometryScriptVectorList 等不可序列化类型。用 MeshOperationLibrary 的 GetIndexListArray、GetTriangleListArray、GetVectorListArray 提取数据。

空间函数

函数	关键参数	说明
`BuildBVHForMesh`	`TargetMesh`	构建 BVH 加速结构。out：`OutputBVH`
`RebuildBVHForMesh`	`TargetMesh`, `UpdateBVH`	重建已有 BVH
`FindNearestPointOnMesh`	`TargetMesh`, `QueryPoint`, `Options`	查找 mesh 上最近点。out：`NearestResult`
`FindNearestRayIntersectionWithMesh`	`TargetMesh`, `RayOrigin`, `RayDirection`, `Options`	射线与 mesh 求交。out：`HitResult`
`IsPointInsideMesh`	`TargetMesh`, `QueryPoint`, `Options`	点是否在 mesh 内部。out：`bIsInside`（需要 BVH）

注意：FGeometryScriptDynamicMeshBVH 不可序列化，BVH 只能在同一调用链中使用（如 Python 脚本内）。对于跨调用的空间查询，建议用 Python 脚本批量处理。

采样函数

函数	关键参数	说明
`ComputePointSampling`	`TargetMesh`, `Options`	泊松盘采样
`ComputeUniformRandomPointSampling`	`TargetMesh`, `Options`	均匀随机采样
`ComputeNonUniformPointSampling`	`TargetMesh`, `Options`	非均匀采样
`ComputeVertexWeightedPointSampling`	`TargetMesh`, `Options`	顶点权重采样

比较函数

函数	关键参数	说明
`IsSameMeshAs`	`TargetMesh`, `OtherMesh`, `Options`	两个 mesh 是否相同
`MeasureDistancesBetweenMeshes`	`TargetMesh`, `OtherMesh`	测量两个 mesh 间的距离
`IsIntersectingMesh`	`TargetMesh`, `OtherMesh`, `TargetTransform`, `OtherTransform`	两个 mesh 是否相交

JSON 示例

获取包围盒：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshQueryFunctions","function":"GetMeshBoundingBox","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0"}}

获取三角形顶点位置：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshQueryFunctions","function":"GetTrianglePositions","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","TriangleID":0}}

获取体积和表面积：

json

{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshQueryFunctions","function":"GetMeshVolumeArea","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0"}}

发现

对上述任意 CDO 路径调用 DescribeObject 可查看完整函数列表和参数签名。

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Source

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

Popularity

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

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