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  3. FGroomBuilder

FGroomBuilder

Data flow overview

Unreal Engine C++ API Reference > Plugins > HairStrandsCore

References

   
Module HairStrandsCore
Header /Engine/Plugins/Runtime/HairStrands/Source/HairStrandsCore/Public/GroomBuilder.h
Include #include "GroomBuilder.h"

Syntax

struct FGroomBuilder

Remarks

Data flow overview

HairDescription -> HairDescriptionGroups -> HairStrandsData -> HairStrandsBulkData* -> HairStrandsInterpolationData ->HairStrandsInterpolationBulkData* -> HairStrandsClusterData*

  • Data used at runtime. Other type of data are intermediate data used only during building/within the editor

Functions

  Type Name Description
Public function Static void

BuildBulkData ( const FHairGroupInfo& InInfo,
const FHairStrandsDatas& InData,
FHairStrandsBulkData& OutBulkData
)

 Build bulk data for Strands / Guides
Public function Static void

BuildClusterBulkData ( const FHairStrandsDatas& InRenData,
const float InGroomAssetRadius,
const FHairGroupsLOD& InSettings,
FHairStrandsClusterBulkData& OutClusterData
)

 Build cluster data
Public function Static void

BuildData ( FHairStrandsDatas& OutStrands
)

 2.b Build FHairStrandsDatas for Strands or Guides.
Public function Static void

BuildData ( const FHairDescriptionGroup& InHairDescriptionGroup,
const FHairGroupsInterpolation& InSettings,
FHairGroupInfo& OutGroupInfo,
FHairStrandsDatas& OutStrands,
FHairStrandsDatas& OutGuides,
bool bAllowCurveReordering
)

 2.a Build FHairStrandsDatas for Strands & Guides, based on HairDescriptionGroups and DecimationSettings
Public function Static bool Build hair group based on the hair description
Public function Static void

BuildInterplationBulkData ( const FHairStrandsDatas& InSimData,
const FHairStrandsInterpolationDatas& InInterpolationData,
FHairStrandsInterpolationBulkData& OutInterpolationData
)

 Build interplation bulk data
Public function Static void

BuildInterplationData ( const FHairGroupInfo& InInfo,
const FHairStrandsDatas& InRenData,
const FHairStrandsDatas& InSimData,
const FHairInterpolationSettings& InInterpolationSettings,
FHairStrandsInterpolationDatas& OutInterpolationData
)

 Build interplation data based on the hairStrands data
Public function Static FString  
Public function Static void Optional: Voxelize hair group index.

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