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  3. FLandscapeComponentSceneProxy

FLandscapeComponentSceneProxy

[FLandscapeComponentSceneProxy](API\Runtime\Landscape\FLandscapeComponentSceneProxy)

API > API/Runtime > API/Runtime/Landscape

Inheritance Hierarchy

References

   
Module Landscape
Header /Engine/Source/Runtime/Landscape/Public/LandscapeRender.h
Include #include "LandscapeRender.h"

Syntax

class FLandscapeComponentSceneProxy :  
    public FPrimitiveSceneProxy,  
    public FLandscapeSectionInfo

Remarks

FLandscapeComponentSceneProxy

Variables

  Type Name Description
Protected variable TArray< FMaterialRenderProxy * > AvailableMaterials All available materials, including LOD Material, Tessellation generated materials
Protected variable bool bNaniteActive  
Protected variable bool bUsesLandscapeCulling  
Protected variable int32 CollisionMipLevel Data used in editor or visualisers
Protected variable FCollisionResponseContainer CollisionResponse  
Protected variable TUniquePtr< FLandscapeLCI > ComponentLightInfo  
Protected variable float ComponentMaxExtend  
Protected variable int32 ComponentSizeQuads Size of the component in unique heights.
Protected variable int32 ComponentSizeVerts ComponentSizeQuads + 1.
Protected variable float ComponentSquaredScreenSizeToUseSubSections  
Protected variable FLandscapeEditToolRenderData EditToolRenderData  
Protected variable int32 FirstLOD  
Protected variable int32 FirstVirtualTextureLOD  
Protected variable FLandscapeVertexFactory * FixedGridVertexFactory  
Public variable friend FLandscapeRenderSystem  
Protected variable TArray< FLandscapeBatchElementParams > GrassBatchParams  
Protected variable FMeshBatch GrassMeshBatch Precomputed grass rendering MeshBatch and per-LOD params.
Protected variable FVector4f HeightmapScaleBias  
Protected variable float HeightmapSubsectionOffsetU  
Protected variable float HeightmapSubsectionOffsetV  
Protected variable UTexture2D * HeightmapTexture Heightmap in RG and Normalmap in BA.
Protected variable const ULandscapeComponent * LandscapeComponent  
Protected variable TArray< TUniformBuffer< FLandscapeFixedGridUniformShaderParameters > > LandscapeFixedGridUniformShaderParameters  
Protected variable TUniformBuffer< FLandscapeUniformShaderParameters > LandscapeUniformShaderParameters  
Protected variable int32 LastLOD  
Protected variable int32 LastVirtualTextureLOD  
Protected variable TArray< FLinearColor > LayerColors  
Protected variable int32 LightMapResolution LightMap resolution used for VMI_LightmapDensity
Protected variable FMatrix LocalToWorldNoScaling  
Protected variable TArray< int8 > LODIndexToMaterialIndex Mapping between LOD and Material Index
Protected variable TArray< float > LODScreenRatioSquared  
Protected variable FLandscapeRenderSystem::LODSettingsComponent LODSettings  
Protected variable TArray< int8 > MaterialIndexToStaticMeshBatchLOD Mapping between Material Index to Static Mesh Batch
Protected variable TArray< FMaterialRelevance > MaterialRelevances Material Relevance for each material in AvailableMaterials
Protected variable int8 MaxLOD  
Protected variable int32 NumSubsections Number of subsections within the component in each dimension, this can be 1 or 2.
Protected variable int8 NumWeightmapLayerAllocations  
Protected variable FIntPoint SectionBase Address of the component within the parent Landscape in unique height texels.
Protected variable FLandscapeSharedBuffers * SharedBuffers  
Protected variable uint32 SharedBuffersKey  
Protected variable int32 SimpleCollisionMipLevel  
Protected variable TArray< FLandscapeBatchElementParams > StaticBatchParamArray Storage for static draw list batch params.
Protected variable uint8 StaticLightingLOD  
Protected variable float StaticLightingResolution  
Protected variable TArray< FVector > SubSectionScreenSizeTestingPosition  
Protected variable int32 SubsectionSizeQuads Number of unique heights in the subsection.
Protected variable int32 SubsectionSizeVerts Number of heightmap heights in the subsection. This includes the duplicate row at the end.
Protected variable FLandscapeVertexFactory * VertexFactory  
Protected variable uint8 VirtualTexturePerPixelHeight  
Protected variable FLandscapeVisibilityHelper VisibilityHelper  
Protected variable int32 VisibilityWeightmapChannel  
Protected variable UTexture2D * VisibilityWeightmapTexture  
Protected variable FVector4f WeightmapScaleBias  
Protected variable float WeightmapSubsectionOffset  
Protected variable TArray< UTexture2D * > WeightmapTextures  
Protected variable FMatrix WorldToLocal Cached versions of these.
Protected variable UTexture2D * XYOffsetmapTexture  

Constructors

  Type Name Description
Public function   Constructor

Destructors

  Type Name Description
Protected function Virtual    

Functions

  Type Name Description
Public function void

ChangeComponentScreenSizeToUseSubSections_RenderThread ( float InComponentScreenSizeToUseSubSections
)

 FLandcapeSceneProxy.
Public function Const const FMeshBatch &  
Protected function Const int8

GetLODFromScreenSize ( float InScreenSizeSquared,
float InViewLODScale
)

  
Protected function Const bool

GetMeshElementForVirtualTexture ( int32 InLodIndex,
ERuntimeVirtualTextureMaterialType MaterialType,
FMaterialRenderProxy* InMaterialInterface,
FMeshBatch& OutMeshBatch,
TArray< FLandscapeBatchElementParams >& OutStaticBatchParamArray
)

 Creates a mesh batch for virtual texture rendering.
Protected function Const bool

GetStaticMeshElement ( int32 LODIndex,
bool bForToolMesh,
FMeshBatch& MeshBatch,
ArrayType& OutStaticBatchParamArray
)

  

Overridden from FPrimitiveSceneProxy

  Type Name Description
Public function Virtual Const void

ApplyViewDependentMeshArguments ( const FSceneView& View,
FMeshBatch& ViewDependentMeshBatch
)

 Gives the primitive an opportunity to override MeshBatch arguments for a specific View Only called for a MeshBatch with a bViewDependentArguments property set
Public function Virtual void

ApplyWorldOffset ( FVector InOffset
)

 Shifts primitive position and all relevant data by an arbitrary delta.
Public function Virtual Const bool  
Public function Virtual void Called when the rendering thread adds the proxy to the scene.
Public function Virtual void Called when the rendering thread removes the proxy from the scene.
Public function Virtual void Draws the primitive's static elements.
Public function Virtual Const void

GetDynamicMeshElements ( const TArray< const FSceneView* >& Views,
const FSceneViewFamily& ViewFamily,
uint32 VisibilityMap,
FMeshElementCollector& Collector
)

 Gathers the primitive's dynamic mesh elements.
Public function Virtual Const void

GetHeightfieldRepresentation ( UTexture2D*& OutHeightmapTexture,
UTexture2D*& OutVisibilityTexture,
FHeightfieldComponentDescription& OutDescription
)

  
Public function Virtual void

GetLCIs ( FLCIArray& LCIs
)

  
Public function Virtual Const int32 Get the lightmap resolution for this primitive. Used in VMI_LightmapDensity.
Public function Virtual Const void

GetLightRelevance ( const FLightSceneProxy* LightSceneProxy,
bool& bDynamic,
bool& bRelevant,
bool& bLightMapped,
bool& bShadowMapped
)

 Determines the relevance of this primitive's elements to the given light.
Public function Virtual Const uint32 Every derived class should override these functions
Public function Virtual Const FPrimitiveViewRelevance

GetViewRelevance ( const FSceneView* View
)

 Determines the relevance of this primitive's elements to the given view.
Public function Virtual Const bool  
Public function Virtual bool Called to notify the proxy that the level has been fully added to the world and the primitive will now be rendered.
Public function Virtual void Called to notify the proxy that the level has been fully removed from the world and the primitive will not be rendered.
Public function Virtual void Called to notify the proxy when its transform has been updated.

Overridden from FLandscapeSectionInfo

  Type Name Description
Public function Virtual Const float  
Public function Virtual Const float

ComputeLODForView ( const FSceneView& InView
)

  
Public function Virtual Const double Computes the worldspace units per vertex of the landscape section.
Public function Virtual Const int32 Return the resolution of a component, in vertices (-1 for any sections that are not grid based, i.e. mesh sections)
Public function Virtual Const void

GetSectionBoundsAndLocalToWorld ( FBoxSphereBounds& LocalBounds,
FMatrix& LocalToWorld
)

  
Public function Virtual void Used to notify derived classes when render coords are calculated

Constants

Name Description
MAX_SUBSECTION_COUNT  
SharedBuffersMap Reference counted vertex and index buffer shared among all landscape scene proxies of the same component size Key is the component size and number of subsections.

Deprecated Variables

  Type Name Description
Protected variable ELandscapeLODFalloff::Type LODFalloff_DEPRECATED  

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