FOptions

Unreal Engine C++ API Reference > Developer > GeometryProcessingInterfaces > GeometryProcessingInterfaces > IGeometryProcessing_CombineMeshInstances

References

   
Module GeometryProcessingInterfaces
Header /Engine/Source/Developer/GeometryProcessingInterfaces/Public/GeometryProcessingInterfaces/CombineMeshInstances.h
Include #include "GeometryProcessingInterfaces/CombineMeshInstances.h"

Syntax

struct FOptions  

Variables

Type Name Description
int ApproximateDecorativePartLODs Decorative part will be approximated by simple shape for this many LOD levels before Filter level.
int32 ApproximationSourceLOD Which LOD to use as basis for Approximations. Index is interpreted relative to [CopiedLODs...SimplifiedLODs] set, ie can be set to a Simplified LOD
int32 BaseCopiedLOD Settings for Copied LODs, these are directly copied from Source Geometry
bool bAutoGenerateMissingUVs Final processing options applied to each LOD after generationensure that all triangles have some UV values set.
bool bAutoGenerateTangents Generate tangents on the output meshes - requires that UVs be available
bool bDoubleSidedHiddenRemoval Treat faces as double-sided for hidden removal
bool bEnableBudgetStrategy_PartLODPromotion Enable/disable the Part Promotion LOD strategy (described above)
bool bMergeCoplanarFaces Attempt to merge/weld coplanar areas after hidden removal, and then further simplify those merged areas Coplanar merging is never applied between areas with different Materials.
bool bRetriangulateSourceLODs If enabled, attempt to retriangulate planar areas of Source LODs to remove redundant coplanar geometry.
bool bSimplifyPreserveCorners  
double CoarseApproximationDetailSize  
double CoarseLODBaseTolerance  
int32 CoarseLODMaxTriCountBase  
ECoarseApproxim... CoarseLODStrategy Settings for Coarse LODs.
int32 FilterDecorativePartsLODLevel LOD level to filter out detail parts.
TArray< int32 > HardLODBudgets Optional Support for hitting explicit triangle counts for different LODs.
double HardNormalAngleDeg Opening angle used to detect/assign sharp edges
double MaxAllowableApproximationDeviation  
int32 MergeCoplanarFacesStartLOD LOD level at which coplanar face merging is applied.
int32 NumCoarseLODs  
int32 NumCopiedLODs  
int32 NumLODs Number of requested LODs
int32 NumSimplifiedLODs Settings for Simplifed LODs
double OptimizeBaseTriCost  
double OptimizeLODLevelTriCostScale  
double PartLODPromotionBudgetMultiplier Multiplier on LOD Budgets for PartLODPromotion strategy. This can be used to compensate for hidden-geometry removal and other optimizations done after the strategy is applied.
int32 PlanarPolygonRetriangulationStartLOD LOD level to attempt extraction and retriangulation of detected planar polygonal areas, after removing hidden faces.
TArray< UMateri... PreventMergingMaterialSet Triangles with Materials assigned that are also in this set will not be allowed to be combined/retriangulated with adjacent triangles.
ERemoveHiddenFa... RemoveHiddenFacesMethod Overall strategy to use for removing hidden faces
double RemoveHiddenSamplingDensity (approximately) spacing between samples on triangle faces used for determining exterior visibility
int32 RemoveHiddenStartLOD Start removing hidden faces at this LOD level
double SimplifyBaseTolerance  
double SimplifyLODLevelToleranceScale  
double SimplifyMinSalientDimension  
double SimplifySharpEdgeAngleDeg  
int32 StartRetriangulateSourceLOD Which Source LOD to start planar retriangulation at
TFunction< UE::... TriangleGroupingIDFunc TriangleGroupingIDFunc allows client to specify external adjacency relationships between triangles via an integer ID tuple.
EVertexColorMap... VertexColorMappingMode Color mapping modes for vertex colors, primarily used for debugging.

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