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API > API/Plugins > API/Plugins/HairStrandsCore
Inheritance Hierarchy
- FRenderResource
- FHairCommonResource
- FHairStrandsLODRestRootResource
References
| Module | HairStrandsCore |
| Header | /Engine/Plugins/Runtime/HairStrands/Source/HairStrandsCore/Public/GroomResources.h |
| Include | #include "GroomResources.h" |
Syntax
struct FHairStrandsLODRestRootResource : public FHairCommonResource
Remarks
Render buffers for root deformation for dynamic meshes
Variables
| Type | Name | Description | |
|---|---|---|---|
 |
uint32 | AvailableCurveCount | |
 |
FHairStrandsRootBulkData & | BulkData | Store CPU data for root info & root binding |
 |
const EHairStrandsResourcesType | CurveType | Type of curves |
 |
FRDGExternalBuffer | MeshInterpolationWeightsBuffer | |
 |
const uint32 | MeshLODIndex | Mesh LOD index for this root resource. Used for sanity check |
 |
FRDGExternalBuffer | MeshSampleIndicesAndSectionsBuffer | |
 |
FRDGExternalBuffer | RestSamplePositionsBuffer | |
 |
FRDGExternalBuffer | RestUniqueTrianglePositionBuffer | Strand hair roots translation and rotation in rest position relative to the bound triangle. |
 |
FRDGExternalBuffer | RootBarycentricBuffer | |
 |
FRDGExternalBuffer | RootToUniqueTriangleIndexBuffer | Strands hair root to unique triangle index |
 |
uint32 | SampleCount | Strand hair mesh interpolation matrix and sample indices |
 |
EStatus | Status | |
 |
FRDGExternalBuffer | UniqueTriangleIndexBuffer | Triangle on which a root is attached When the projection is done with source to target mesh transfer, the projection indices does not match. |
Constructors
| Type | Name | Description | |
|---|---|---|---|
 |
FHairStrandsLODRestRootResource
(
FHairStrandsRootBulkData& BulkData, |
Build the hair strands resource |
Functions
| Type | Name | Description | |
|---|---|---|---|
  |
uint32 | Return the memory size for GPU resources | |
  |
uint32 | GetRootCount () |
Accessors. |
  |
const bool | IsDataValid () |
|
  |
const bool | IsValid () |
|
 |
void | Reset () |
Populate GPU LOD data from RootData (this function doesn't initialize resources) |
Overridden from FHairCommonResource
| Type | Name | Description | |
|---|---|---|---|
  |
void | InternalAllocate
(
FRDGBuilder& GraphBuilder, |
Init/Release buffers |
  |
FHairStrandsBulkCommon * | ||
  |
bool | InternalGetOrRequestData
(
uint32 InRequestedCurveCount, |
|
  |
void | ||
  |
void |
Overridden from FRenderResource
| Type | Name | Description | |
|---|---|---|---|
   |
FString | Get the resource name |
Enums
| Type | Name | Description | |
|---|---|---|---|
 |
EStatus |