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          DynamicMesh

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          Classes

          Name

          Description

          Public class

          FDynamicMesh3

          FDynamicMesh3 is a dynamic triangle mesh class.

          Public class

          FDynamicMeshAttributeChangeSet

          FDynamicMeshAttributeChangeSet stores a set of UV and Normal changes for a FDynamicMesh3

          Public class

          FDynamicMeshAttributeSet

          FDynamicMeshAttributeSet manages a set of extended attributes for a FDynamicMesh3 .

          Public class

          FDynamicMeshAttributeSetChangeTracker

          FDynamicMeshAttributeSetChangeTracker constructs a well-formed set of TDynamicMeshAttributeChange objects (stored in a FDynamicMeshAttributeChangeSet ).

          Public class

          FDynamicMeshChange

          FDynamicMeshChange stores a "change" in a FDynamicMesh3 , which in this context means the replacement of one set of triangles with a second set, that may have different vertices/attributes.

          Public class

          FDynamicMeshChangeTracker

          FDynamicMeshChangeTracker tracks changes to a FDynamicMesh and returns a FDynamicMeshChange instance that represents this change and allows it to be reverted/reapplied.

          Public class

          FDynamicMeshEditor

          FDynamicMeshEditor implements low-level mesh editing operations.

          Public struct

          FDynamicMeshEditResult

          FDynamicMeshEditResult is used to return information about new mesh elements created by mesh changes, primarily in FDynamicMeshEditor

          Public class

          FDynamicMeshModule

          Public class

          FDynamicMeshOctree3

          FDynamicMeshOctree3 is an extension of FSparseDynamicOctree3 for the triangles of a FDynamicMesh3 instance.

          Public class

          FDynamicMeshTriangleAttributeChange

          Public struct

          FDynamicSubmesh3

          Public struct

          FEdgeCollapseInfo

          Information about mesh elements modified/removed by CollapseEdge()

          Public struct

          FEdgeConstraint

          FEdgeConstraint is a constraint on a triangle mesh edge

          Public struct

          FEdgeFlipInfo

          Information about the mesh elements modified by a call to FlipEdge()

          Public class

          FEdgeLoop

          Sequential lists of vertices/edges in a mesh that form a closed loop

          Public class

          FEdgeSpan

          Sequential lists of vertices/edges in a mesh that is not closed.

          Public struct

          FEdgeSplitInfo

          Information about the mesh elements created by a call to SplitEdge()

          Public class

          FGroupTopology

          Given a per-triangle integer ("group"), FGroupTopology extracts a group-level topological graph from an input Mesh.

          Public struct

          FGroupTopologySelection

          FGroupTopologySelection represents a set of selected elements of a FGroupTopology

          Public struct

          FMergeEdgesInfo

          Information about mesh elements modified by MergeEdges()

          Public class

          FMeshBoundaryLoops

          Public class

          FMeshConstraints

          FMeshConstraints is a set of Edge and Vertex constraints for a Triangle Mesh

          Public class

          FMeshConstraintsUtil

          Utility functions for configuring a FMeshConstraints instance

          Public struct

          FMeshIndexMappings

          FMeshIndexMappings stores a set of integer IndexMaps for a mesh This is a convenient object to have, to avoid passing around large numbers of separate maps.

          Public class

          FMeshNormals

          FMeshNormals is a utility class that can calculate and store various types of normal vectors for a FDynamicMesh.

          Public class

          FMeshProjectionTarget

          FMeshProjectionTarget provides an IProjectionTarget interface to a FDynamicMesh + FDynamicMeshAABBTree3 Use to project points to mesh surface.

          Public class

          FMeshRefinerBase

          This is a base class that implements common functionality for various triangle mesh resampling strategies (ie FRemesher and FReducer).

          Public class

          FMeshRegionBoundaryLoops

          Extract FEdgeLoops on the boundary of a set of triangles of a mesh.

          Public class

          FMeshWeights

          FMeshWeights implements various techniques for computing local weights of a mesh, for example one-ring weights like Cotangent or Mean-Value.

          Public struct

          FPokeTriangleInfo

          Information about mesh elements modified/created by PokeTriangle()

          Public class

          FRemesher

          FRemesher implements edge flip/split/collapse/smooth Remeshing.

          Public class

          FSubRegionRemesher

          FSubRegionRemesher is an extension of FRemesher that allows for constraining remeshing to a localized region of a mesh.

          Public class

          FTriangleGroupTopology

          FTriangleGroupTopology is a simplification of FGroupTopology that just represents a normal mesh.

          Public struct

          FVertexConstraint

          FVertexConstraint is a constraint on a triangle mesh vertex

          Public struct

          FVertexSplitInfo

          Information about mesh elements modified/created by SplitVertex()

          Public class

          TDynamicAttributeBase

          Base class for attributes that live on a dynamic mesh (or similar dynamic object)

          Public class

          TDynamicAttributeChangeBase

          Generic base class for change tracking of an attribute layer

          Public class

          TDynamicAttributeSetBase

          Generic base class for managing a set of registered attributes that must all be kept up to date

          Public class

          TDynamicMeshAttributeChange

          Implementation of mesh change tracking for FDynamicMesh3 .

          Public class

          TDynamicMeshOverlay

          TDynamicMeshOverlay is an add-on to a FDynamicMesh3 that allows for per-triangle storage of an "element" (eg like a per-triangle UV or normal).

          Public class

          TDynamicMeshScalarTriangleAttribute

          TDynamicMeshScalarTriangleAttribute is an extension of TDynamicMeshTriangleAttribute for scalar-valued attributes.

          Public class

          TDynamicMeshTriangleAttribute

          TDynamicMeshTriangleAttribute is an add-on to a FDynamicMesh3 that allows for per-triangle storage of an attribute value.

          Public class

          TDynamicMeshVectorOverlay

          TDynamicMeshVectorOverlay is an convenient extension of TDynamicMeshOverlay that adds a specific N-element Vector type to the template, and adds accessor functions that convert between that N-element vector type and the N-element arrays used by TDynamicMeshOverlay .

          Public class

          TDynamicPointSet3

          TDynamicPointSet3 implements a dynamic 3D point set, templated on real-value type (float or double).

          Public class

          TDynamicVertexAttribute

          TDynamicVertexAttribute provides per-vertex storage of an attribute value

          Public class

          TDynamicVertexAttributeChange

          Public class

          TDynamicVerticesOctree3

          TDynamicVerticesOctree3 is an extension of FSparseDynamicPointOctree3 for the vertices of a FDynamicXYZ3 instance (eg FDynamicMesh3 , TDynamicPointSet3 , FDynamicGraph , etc) This extension does several things: 1) provides a simplified API based on vertex IDs to various Octree functions 2) tracks ModifiedBounds box of modified areas

          The template expansion requires that FDynamicXYZ3 has the following API: 1) a function int MaxVertexID() that returns the maximum vertex ID/index 2) a function bool IsVertex(int) that returns true if the index is valid 3) a function FVector3d GetVertex(int index) that returns the position of a vertex 4) a function FAxisAlignedBox3d GetBounds() that returns a bounding-box of the point set

          Public class

          TMeshSimplification

          Implementation of Garland & Heckbert Quadric Error Metric (QEM) Triangle Mesh Simplification

          Public class

          TMeshTangents

          TMeshTangents is a utility class that can calculate and store various types of tangent vectors for a FDynamicMesh.

          Typedefs

          Name

          Description

          FAttrMeshSimplification

          The simplifier.

          FDynamicMeshAABBTree3

          FDynamicMeshAttributeBase

          FDynamicMeshAttributeChangeBase

          FDynamicMeshAttributeSetBase

          FDynamicMeshMaterialAttribute

          Standard per-triangle integer material ID

          FDynamicMeshNormalChange

          Standard Normal overlay change type - 3-element float

          FDynamicMeshNormalOverlay

          Standard Normal overlay type - 3-element float

          FDynamicMeshUVChange

          Standard UV overlay change type - 2-element float

          FDynamicMeshUVOverlay

          Standard UV overlay type - 2-element float

          FDynamicPointSet3d

          FDynamicPointSet3f

          FMeshTangentsd

          FMeshTangentsf

          FQEMSimplification

          FVolPresMeshSimplification

          TDynamicMeshVertexAttribute

          Enums

          Name

          Description

          Public enum

          EEdgeRefineFlags

          EEdgeRefineFlags indicate constraints on triangle mesh edges

          Public enum

          EMeshComponents

          Public enum

          ESimplificationResult

          Functions

          Name Description

          Public function

          void

           

          FaceGroupUtil::CountAllGroups

          (
              const FDynamicMesh3 & Mesh,
              TArray < int32 >& GroupCountsOut
          )

          Count number of tris in each group in Mesh; TODO: does this need sparse storage?

          Public function

          void

           

          FaceGroupUtil::FindAllGroups

          (
              const FDynamicMesh3 & Mesh,
              TSet < int32 >& GroupsOut
          )

          Find the set of group ids used in Mesh

          Public function

          bool

           

          FaceGroupUtil::FindTrianglesByGroup

          (
              FDynamicMesh3 & Mesh,
              int32 FindGroupID,
              TArray < int32 >& TrianglesOut
          )

          Find list of triangles in Mesh with specific group id

          Public function

          void

           

          FaceGroupUtil::FindTriangleSetsByGroup

          (
              const FDynamicMesh3 & Mesh,
              TArray < TArray < int32 >>& GroupTri...,
              int32 IgnoreGID
          )

          Collect triangles by group id.

          Public function

          bool

           

          FaceGroupUtil::HasMultipleGroups

          (
              const FDynamicMesh3 & Mesh
          )

          Public function

          void

           

          FaceGroupUtil::SeparateMeshByGroups

          (
              FDynamicMesh3 & Mesh,
              TArray < FDynamicMesh3 >& SplitMesh...,
              TArray < int32 >& GroupIDs
          )

          Split input Mesh into submeshes based on group ID does not separate disconnected components w/ same group ID

          Public function

          void

           

          FaceGroupUtil::SeparateMeshByGroups

          (
              FDynamicMesh3 & Mesh,
              TArray < FDynamicMesh3 >& SplitMesh...
          )

          Split input Mesh into submeshes based on group ID does not separate disconnected components w/ same group ID

          Public function

          void

           

          FaceGroupUtil::SetGroupID

          (
              FDynamicMesh3 & Mesh,
              const TArrayView < const int32 >& t...,
              int32 to
          )

          Set group id of subset of triangles in Mesh

          Public function

          void

           

          FaceGroupUtil::SetGroupID

          (
              FDynamicMesh3 & Mesh,
              int32 to
          )

          Set group ID of all triangles in Mesh

          Public function

          void

           

          FaceGroupUtil::SetGroupToGroup

          (
              FDynamicMesh3 & Mesh,
              int32 from,
              int32 to
          )

          Replace group id in Mesh

          Public function

          FPointSetAda ...

           

          MeshAdapterUtil::MakeBoundaryEdgeMidpointsAdapter

          (
              const FDynamicMesh3 * Mesh
          )

          Public function

          FTriangleMes ...

           

          MeshAdapterUtil::MakeDynamicMeshAdapter

          (
              const FDynamicMesh3 * Mesh
          )

          Public function

          FPointSetAda ...

           

          MeshAdapterUtil::MakeEdgeMidpointsAdapter

          (
              const FDynamicMesh3 * Mesh
          )

          Public function

          FPointSetAda ...

           

          MeshAdapterUtil::MakePointsAdapter

          (
              const FDynamicPointSet3d * Poin...
          )

          Public function

          FTriangleMes ...

           

          MeshAdapterUtil::MakeTransformedDynamicMeshAdapter

          (
              const FDynamicMesh3 * Mesh,
              FTransform Transform
          )

          Public function

          FPointSetAda ...

           

          MeshAdapterUtil::MakeTriCentroidsAdapter

          (
              const FDynamicMesh3 * Mesh
          )

          Public function

          FPointSetAda ...

           

          MeshAdapterUtil::MakeVerticesAdapter

          (
              const FDynamicMesh3 * Mesh
          )

          Public function

          void

           

          MeshIndexUtil::TriangleToVertexIDs

          (
              const FDynamicMesh3 * Mesh,
              const TArray < int >& TriangleIDs,
              TArray < int >& VertexIDsOut
          )

          Find list of unique vertices that are contained in one or more triangles

          Public function

          void

           

          MeshIndexUtil::VertexToTriangleOneRing

          (
              const FDynamicMesh3 * Mesh,
              const TArray < int >& VertexIDs,
              TSet < int >& TriangleIDsOut
          )

          Find all the triangles in all the one rings of a set of vertices

          Public function

          void

           

          MeshTransforms::ApplyTransform

          (
              FDynamicMesh3 & Mesh,
              const FTransform3d & Transform
          )

          Apply given Transform to a Mesh.

          Public function

          void

           

          MeshTransforms::ApplyTransform

          (
              FDynamicMesh3 & Mesh,
              TFunctionRef < FVector3d ...,
              TFunctionRef < FVector3f ...
          )

          Apply given Transform to a Mesh.

          Public function

          void

           

          MeshTransforms::ApplyTransformInverse

          (
              FDynamicMesh3 & Mesh,
              const FTransform3d & Transform
          )

          Apply inverse of given Transform to a Mesh.

          Public function

          void

           

          MeshTransforms::FrameCoordsToWorld

          (
              FDynamicMesh3 & Mesh,
              const FFrame3d & Frame
          )

          Transform Mesh out of local coordinates of Frame

          Public function

          void

           

          MeshTransforms::Translate

          (
              FDynamicMesh3 & Mesh,
              const FVector3d & Translation
          )

          Apply Translation to vertex positions of Mesh. Does not modify any other attributes.

          Public function

          void

           

          MeshTransforms::WorldToFrameCoords

          (
              FDynamicMesh3 & Mesh,
              const FFrame3d & Frame
          )

          Transform Mesh into local coordinates of Frame

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