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  3. FNegativeSpaceSampleSettings

FNegativeSpaceSampleSettings

API > API/Runtime > API/Runtime/GeometryCore > API/Runtime/GeometryCore/CompGeom

References

   
Module GeometryCore
Header /Engine/Source/Runtime/GeometryCore/Public/CompGeom/ConvexDecomposition3.h
Include #include "CompGeom/ConvexDecomposition3.h"

Syntax

struct FNegativeSpaceSampleSettings

Variables

  Type Name Description
Public variable bool bAllowSamplesInsideMesh Whether to allow samples to be added inside the mesh, based on winding number. Can enabled for non-solid meshes; note the convex decomposition should then set bTreatAsSolid to false as well.
Public variable bool bAllowSamplesInsideSpheres Whether to allow samples w/ center inside other negative space spheres.
Public variable bool bDeterministic Attempt to keep negative space computation deterministic, at some additional runtime cost.
Public variable bool bOnlyConnectedToHull Whether to only consider negative space that is connected to the bounding convex hull, i.e., to ignore hollow inner pockets of negative space that cannot be reached from the outside (for VoxelSearch and Navigable methods)
Public variable bool bRequireSearchSampleCoverage Whether to require that all candidate sample locations identified by Voxel Search are covered by negative space samples, up to the specified Min Sample Spacing.
Public variable double MarchingCubesGridScale Scale factor for marching cubes grid used for VoxelSearch-based methods.
Public variable int32 MaxVoxelsPerDim Maximum number of voxels to use per dimension, when performing VoxelSearch.
Public variable double MinRadius Ignore spheres with smaller radius than this.
Public variable double MinSpacing Minimum desired spacing between sampling spheres; not a strictly enforced bound.
Public variable TFunction< double(FVector Pos)> OptionalObstacleSDF Optional function to define an obstacle SDF which the negative space should also stay out of.
Public variable double ReduceRadiusMargin Space to allow between spheres and actual surface.
Public variable ESampleMethod SampleMethod Method used to place samples.
Public variable int32 TargetNumSamples Target number of spheres to use to cover negative space. Intended as a rough guide; actual number used may be larger or smaller.
Public variable double VoxelExpandBoundsFactor How much to expand the bounding box used for voxel search algorithms.

Constructors

  Type Name Description
Public function    
Public function  

FNegativeSpaceSampleSettings ( int32 TargetNumSamples,
double MinSpacing,
double ReduceRadiusMargin
)

  

Functions

  Type Name Description
Public function void Note: Class member default values are held fixed to avoid changing results for existing callers Use this method to request newer, recommended defaults
Public function Const double  
Public function Const FTransform  
Public function Const double

ObstacleDistance ( const FVector3d& LocalPos
)

 Helper to evaluate OptionalObstacleSDF for local positions
Public function void

Rescale ( double ScaleFactor
)

  
Public function void Make sure the settings values are in valid ranges.
Public function void

SetResultTransform ( FTransform InResultTransform
)

  

Enums

  Type Name Description
Public enum EConfigDefaults Enum to manage settings configurations for FNegativeSpaceSampleSettings.  
Public enum ESampleMethod    

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