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GeometryScript 网格处理操作。当用户要求修复、简化、Remesh、布尔运算、体素化、分解、基础编辑或细分网格时使用。
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Baseado na classificação ocupacional SOC
GeometryScript 资产读写与碰撞操作。当用户要求精细控制 StaticMesh 资产加载/保存选项、创建新资产、生成碰撞体时使用。
GeometryScript 网格属性操作。当用户要求设置/查询顶点色、Polygroup、材质 ID 时使用。
Create geometry through the GeometryScript modeling workflow. Use when the user asks to create primitives, generate profile-based shapes, or produce mesh assets or working meshes for downstream pipelines.
GeometryScript 变形与变换操作。当用户要求弯曲、扭曲、平滑、噪声、位移、平移、旋转、缩放网格时使用。
GeometryScript 法线与切线操作。当用户要求重算法线、分裂法线、翻转法线、计算切线或修复法线方向时使用。
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。
| name | unreal-modeling-meshops |
| description | GeometryScript 网格处理操作。当用户要求修复、简化、Remesh、布尔运算、体素化、分解、基础编辑或细分网格时使用。 |
前置条件：先阅读 unreal-modeling。
| 库 | CDO |
|---|---|
| 修复 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshRepairFunctions |
| 简化 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshSimplifyFunctions |
| Remesh | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_RemeshingFunctions |
| 布尔 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshBooleanFunctions |
| 体素 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshVoxelFunctions |
| 分解 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshDecompositionFunctions |
| 基础编辑 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshBasicEditFunctions |
| 细分 | /Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshSubdivideFunctions |
| OpenSubdiv | /Script/GeometryScriptingEditor.Default__GeometryScriptLibrary_OpenSubdivFunctions |
| 函数 | 关键参数 | 说明 |
|---|---|---|
CompactMesh | TargetMesh | 压缩顶点/三角形 ID 空间，移除间隙 |
RemoveUnusedVertices | TargetMesh | 删除未被三角形引用的顶点 |
WeldMeshEdges | TargetMesh, WeldOptions | 焊接开放边界（修复裂缝） |
ResolveMeshTJunctions | TargetMesh, ResolveOptions | 解决 T 形交叉 |
SnapMeshOpenBoundaries | TargetMesh, SnapOptions | 吸附开放边界到最近的兼容边界 |
FillAllMeshHoles | TargetMesh, FillOptions | 填充所有孔洞。out：NumFilledHoles、NumFailedHoleFills |
RemoveSmallComponents | TargetMesh, Options | 删除体积/面积/三角形数低于阈值的孤立组件 |
RemoveHiddenTriangles | TargetMesh, Options | 删除从外部不可见的三角形 |
SplitMeshBowties | TargetMesh, bMeshBowties, bAttributeBowties | 拆分蝴蝶结拓扑 |
RepairMeshDegenerateGeometry | TargetMesh, Options | 删除退化三角形（面积/边长过小） |
FGeometryScriptWeldEdgesOptions：Tolerance(float, 1e-6)、bOnlyUniquePairs(bool, true)
FGeometryScriptFillHolesOptions：FillMethod(枚举)、bDeleteIsolatedTriangles(bool, true)
EGeometryScriptFillHolesMethod：Automatic、MinimalFill、PolygonTriangulation、TriangleFan、PlanarProjection
FGeometryScriptRemoveSmallComponentOptions：MinVolume(0.0001)、MinArea(0.0001)、MinTriangleCount(1)
FGeometryScriptDegenerateTriangleOptions：Mode(枚举)、MinTriangleArea(0.001)、MinEdgeLength(0.0001)、bCompactOnCompletion(true)
EGeometryScriptRepairMeshMode：DeleteOnly、RepairOrDelete、RepairOrSkip
| 函数 | 关键参数 | 说明 |
|---|---|---|
ApplySimplifyToTriangleCount | TargetMesh, TriangleCount, Options | 简化到目标三角形数 |
ApplySimplifyToVertexCount | TargetMesh, VertexCount, Options | 简化到目标顶点数 |
ApplySimplifyToTolerance | TargetMesh, Tolerance, Options | 简化到几何容差 |
ApplySimplifyToEdgeLength | TargetMesh, EdgeLength, Options | 简化到目标边长 |
ApplySimplifyToPlanar | TargetMesh, Options | 简化平面区域（不改变 3D 形状） |
ApplySimplifyToPolygroupTopology | TargetMesh, Options, GroupLayer | 简化到 Polygroup 拓扑 |
ApplyClusterSimplifyToEdgeLength | TargetMesh, EdgeLength, Options | 基于聚类的快速简化 |
FGeometryScriptSimplifyMeshOptions
| 字段 | 类型 | 默认值 | 说明 |
|---|---|---|---|
Method | EGeometryScriptRemoveMeshSimplificationType | AttributeAware | 简化算法 |
bAllowSeamCollapse | bool | true | 允许接缝折叠 |
bAllowSeamSmoothing | bool | true | 允许接缝平滑 |
bAllowSeamSplits | bool | true | 允许接缝分裂 |
bPreserveVertexPositions | bool | false | 保留顶点位置 |
bAutoCompact | bool | true | 自动压缩 ID 空间 |
EGeometryScriptRemoveMeshSimplificationType：StandardQEM、VolumePreserving、AttributeAware
| 函数 | 关键参数 | 说明 |
|---|---|---|
ApplyUniformRemesh | TargetMesh, RemeshOptions, UniformOptions | 均匀重新网格化 |
FGeometryScriptRemeshOptions：bDiscardAttributes(false)、bReprojectToInput(true)
FGeometryScriptUniformRemeshOptions：TargetType(枚举)、TargetEdgeLength(3.0)、TargetTriangleCount(1000)、SmoothingRate(0.25)、Iterations(20)
| 函数 | 关键参数 | 说明 |
|---|---|---|
ApplyMeshBoolean | TargetMesh, TargetTransform, ToolMesh, ToolTransform, BooleanOperation, Options | 布尔运算（并/差/交） |
ApplyMeshSelfUnion | TargetMesh, Options | 自合并（消除自相交） |
ApplyMeshPlaneCut | TargetMesh, CutFrame, Options | 平面切割 |
ApplyMeshPlaneSlice | TargetMesh, CutFrame, Options | 平面切片（保留两侧） |
ApplyMeshMirror | TargetMesh, MirrorFrame, Options | 镜像 |
布尔操作枚举（BooleanOperation 参数）：Union、Subtract、Intersect
| 函数 | 关键参数 | 说明 |
|---|---|---|
ApplyMeshSolidify | TargetMesh, Options | 体素化实体化 |
ApplyMeshMorphology | TargetMesh, Options | 体素形态学操作（膨胀/腐蚀/开/闭） |
EGeometryScriptMorphologicalOpType：Dilate、Contract、Close、Open
| 函数 | 关键参数 | 说明 |
|---|---|---|
AppendMesh | TargetMesh, AppendMesh | 追加另一个 mesh |
AppendMeshTransformed | TargetMesh, AppendMesh, AppendTransform | 带变换追加 |
AppendMeshRepeated | TargetMesh, AppendMesh, AppendTransform, RepeatCount | 重复追加 |
SetVertexPosition | TargetMesh, VertexID, NewPosition, bDeferChangeNotifications | 设置单个顶点位置 |
AddVertexToMesh | TargetMesh, NewPosition | 添加顶点。out：NewVertexIndex |
AddVerticesToMesh | TargetMesh, NewPositionList | 批量添加顶点。out：NewIndicesList |
AddTriangleToMesh | TargetMesh, NewTriangle | 添加三角形。out：NewTriangleIndex |
AddTrianglesToMesh | TargetMesh, NewTrianglesList | 批量添加三角形 |
DeleteTrianglesFromMesh | TargetMesh, TriangleList | 删除三角形 |
DeleteSelectedTrianglesFromMesh | TargetMesh, Selection | 删除选中三角形 |
DiscardMeshAttributes | TargetMesh | 丢弃所有属性（法线/UV/颜色等） |
SetAllMeshVertexPositions | TargetMesh, PositionList | 批量设置所有顶点位置 |
| 函数 | 关键参数 | 说明 |
|---|---|---|
ApplySelectiveTessellation | TargetMesh, Selection, Options | 选择性细分 |
ApplyUniformTessellation | TargetMesh, TessellationLevel | 均匀细分 |
ApplyPNTessellation | TargetMesh, Options, TessellationLevel | PN 三角形细分 |
ApplyPolygroupCatmullClarkSubD | TargetMesh, Subdivisions, GroupLayer | Catmull-Clark 细分（Editor 库） |
ApplyTriangleLoopSubD | TargetMesh, Subdivisions | Loop 细分（Editor 库） |
填充孔洞：
{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshRepairFunctions","function":"FillAllMeshHoles","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","FillOptions":{"FillMethod":"Automatic","bDeleteIsolatedTriangles":true}}}
简化到目标三角形数：
{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshSimplifyFunctions","function":"ApplySimplifyToTriangleCount","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","TriangleCount":5000,"Options":{"Method":"AttributeAware","bAllowSeamCollapse":true,"bAutoCompact":true}}}
布尔差集：
{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_MeshBooleanFunctions","function":"ApplyMeshBoolean","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","TargetTransform":{"Rotation":{"X":0,"Y":0,"Z":0,"W":1},"Translation":{"X":0,"Y":0,"Z":0},"Scale3D":{"X":1,"Y":1,"Z":1}},"ToolMesh":"/Engine/Transient.DynamicMesh_1","ToolTransform":{"Rotation":{"X":0,"Y":0,"Z":0,"W":1},"Translation":{"X":0,"Y":0,"Z":0},"Scale3D":{"X":1,"Y":1,"Z":1}},"BooleanOperation":"Subtract","Options":{}}}
均匀 Remesh：
{"object":"/Script/GeometryScriptingCore.Default__GeometryScriptLibrary_RemeshingFunctions","function":"ApplyUniformRemesh","params":{"TargetMesh":"/Engine/Transient.DynamicMesh_0","RemeshOptions":{"bDiscardAttributes":false,"bReprojectToInput":true},"UniformOptions":{"TargetEdgeLength":3.0,"SmoothingRate":0.25,"Iterations":20}}}
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。