C++ UStaticMeshComponent::SetMaterial方法代码示例

FThumbnailPreviewScene::FThumbnailPreviewScene()
    : FPreviewScene( ConstructionValues()
                     .SetLightRotation( FRotator(304.736, 39.84, 0) )
                     .SetCreatePhysicsScene(false)
                     .SetTransactional(false))
{
    // A background sky sphere
    UStaticMeshComponent* BackgroundComponent = NewObject<UStaticMeshComponent>();
    BackgroundComponent->SetStaticMesh( GUnrealEd->GetThumbnailManager()->EditorSkySphere );
    const float SkySphereScale = 2000.0f;
    const FTransform BackgroundTransform(FRotator(0,0,0), FVector(0,0,0), FVector(SkySphereScale));
    FPreviewScene::AddComponent(BackgroundComponent, BackgroundTransform);

    // Adjust the default light
    DirectionalLight->Intensity = 0.2f;

    // Add additional lights
    UDirectionalLightComponent* DirectionalLight2 = NewObject<UDirectionalLightComponent>();
    DirectionalLight->Intensity = 5.0f;
    AddComponent(DirectionalLight2, FTransform( FRotator(-40,-144.678, 0) ));

    UDirectionalLightComponent* DirectionalLight3 = NewObject<UDirectionalLightComponent>();
    DirectionalLight->Intensity = 1.0f;
    AddComponent(DirectionalLight3, FTransform( FRotator(299.235,144.993, 0) ));

    // Add an infinite plane
    const float FloorPlaneScale = 10000.f;
    const FTransform FloorPlaneTransform(FRotator(-90.f,0,0), FVector::ZeroVector, FVector(FloorPlaneScale));
    UStaticMeshComponent* FloorPlaneComponent = NewObject<UStaticMeshComponent>();
    FloorPlaneComponent->SetStaticMesh( GUnrealEd->GetThumbnailManager()->EditorPlane );
    FloorPlaneComponent->SetMaterial( 0, GUnrealEd->GetThumbnailManager()->FloorPlaneMaterial );
    FPreviewScene::AddComponent(FloorPlaneComponent, FloorPlaneTransform);
}

void AFlarePlanetarium::BeginPlay()
{
	Super::BeginPlay();
	FLOG("AFlarePlanetarium::BeginPlay");

	TArray<UActorComponent*> Components = GetComponentsByClass(UStaticMeshComponent::StaticClass());
	for (int32 ComponentIndex = 0; ComponentIndex < Components.Num(); ComponentIndex++)
	{
		UStaticMeshComponent* PlanetCandidate = Cast<UStaticMeshComponent>(Components[ComponentIndex]);
		if (PlanetCandidate)
		{
			// Apply a new dynamic material to planets so that we can control shading parameters
			UMaterialInstanceConstant* BasePlanetMaterial = Cast<UMaterialInstanceConstant>(PlanetCandidate->GetMaterial(0));
			if (BasePlanetMaterial)
			{
				//FLOGV("AFlarePlanetarium::BeginPlay : found planet '%s'", *PlanetCandidate->GetName());

#if PLATFORM_LINUX
				int32 UseNormalAsLightingDirection = 1;
#else
				int32 UseNormalAsLightingDirection = 0;
#endif
				UMaterialInstanceDynamic* PlanetMaterial = UMaterialInstanceDynamic::Create(BasePlanetMaterial, GetWorld());
				PlanetCandidate->SetMaterial(0, PlanetMaterial);
				PlanetMaterial->SetScalarParameterValue("UseNormalAsLightingDirection", UseNormalAsLightingDirection);
			}
		}
	}
}

void UCarlaSettingsDelegate::SetAllRoads(UWorld* world, const float max_draw_distance, const TArray<FStaticMaterial> &road_pieces_materials) const
{
  if(!world||!IsValid(world)||world->IsPendingKill()) return;
  AsyncTask(ENamedThreads::GameThread, [=](){
    if(!world||!IsValid(world)||world->IsPendingKill()) return;
    TArray<AActor*> actors;
    UGameplayStatics::GetAllActorsWithTag(world, UCarlaSettings::CARLA_ROAD_TAG,actors);
    
    for(int32 i=0; i<actors.Num(); i++)
    {
      AActor* actor = actors[i];
      if(!IsValid(actor) || actor->IsPendingKill()) continue;
      TArray<UActorComponent*> components = actor->GetComponentsByClass(UStaticMeshComponent::StaticClass());
      for(int32 j=0; j<components.Num(); j++)
      {
        UStaticMeshComponent* staticmeshcomponent = Cast<UStaticMeshComponent>(components[j]);
        if(staticmeshcomponent)
        {
          staticmeshcomponent->bAllowCullDistanceVolume = (max_draw_distance>0);
          staticmeshcomponent->bUseAsOccluder = false;
          staticmeshcomponent->LDMaxDrawDistance = max_draw_distance; 
            staticmeshcomponent->CastShadow = (max_draw_distance==0);
          if(road_pieces_materials.Num()>0)
          {
            TArray<FName> meshslotsnames = staticmeshcomponent->GetMaterialSlotNames();
            for(int32 k=0; k<meshslotsnames.Num(); k++)
            {
              const FName &slotname = meshslotsnames[k];
              road_pieces_materials.ContainsByPredicate(
            [staticmeshcomponent,slotname](const FStaticMaterial& material)
              {
                if(material.MaterialSlotName.IsEqual(slotname))
                {
                  staticmeshcomponent->SetMaterial(
                    staticmeshcomponent->GetMaterialIndex(slotname), 
                    material.MaterialInterface
                  );
                  return true;
                } else return false;
              });
            }
          }
        }
      }
    }
  }); //,DELAY_TIME_TO_SET_ALL_ROADS, false);
}

void AShaderPluginDemoCharacter::OnFire()
{
	//Try to set a texture to the object we hit!
	FHitResult HitResult;
	FVector StartLocation = FirstPersonCameraComponent->GetComponentLocation();
	FRotator Direction = FirstPersonCameraComponent->GetComponentRotation();
	FVector EndLocation = StartLocation + Direction.Vector() * 10000;
	FCollisionQueryParams QueryParams;
	QueryParams.AddIgnoredActor(this);

	if (GetWorld()->LineTraceSingleByChannel(HitResult, StartLocation, EndLocation, ECC_Visibility, QueryParams))
	{
		TArray<UStaticMeshComponent*> StaticMeshComponents = TArray<UStaticMeshComponent*>();
		AActor* HitActor = HitResult.GetActor();

		if (NULL != HitActor)
		{
			HitActor->GetComponents<UStaticMeshComponent>(StaticMeshComponents);
			for (int32 i = 0; i < StaticMeshComponents.Num(); i++)
			{
				UStaticMeshComponent* CurrentStaticMeshPtr = StaticMeshComponents[i];
				CurrentStaticMeshPtr->SetMaterial(0, MaterialToApplyToClickedObject);
				UMaterialInstanceDynamic* MID = CurrentStaticMeshPtr->CreateAndSetMaterialInstanceDynamic(0);
				UTexture* CastedRenderTarget = Cast<UTexture>(RenderTarget);
				MID->SetTextureParameterValue("InputTexture", CastedRenderTarget);
			}
		}
	}

	// try and play the sound if specified
	if (FireSound != NULL)
	{
		UGameplayStatics::PlaySoundAtLocation(this, FireSound, GetActorLocation());
	}

	// try and play a firing animation if specified
	if (FireAnimation != NULL)
	{
		// Get the animation object for the arms mesh
		UAnimInstance* AnimInstance = Mesh1P->GetAnimInstance();
		if (AnimInstance != NULL)
		{
			AnimInstance->Montage_Play(FireAnimation, 1.f);
		}
	}
}

// Sets default values
AKrofna_CPP::AKrofna_CPP()
{
 	// Set this actor to call Tick() every frame.  You can turn this off to improve performance if you don't need it.
	PrimaryActorTick.bCanEverTick = true;
	UStaticMeshComponent *Krofna = CreateDefaultSubobject<UStaticMeshComponent,UStaticMeshComponent>(TEXT("krofnica"));
	URotatingMovementComponent *Rotacija = CreateDefaultSubobject<URotatingMovementComponent, URotatingMovementComponent>(TEXT("rotaciona komponenta"));
	UPointLightComponent *Svetlo1 = CreateDefaultSubobject <UPointLightComponent, UPointLightComponent>(TEXT("Svetlo1"));
	UPointLightComponent *Svetlo2 = CreateDefaultSubobject <UPointLightComponent, UPointLightComponent>(TEXT("Svetlo2"));
	USphereComponent *Kolizija = CreateDefaultSubobject <USphereComponent, USphereComponent>(TEXT("Kolizija"));
	Kolizija->SetSphereRadius(65.f);
	Kolizija->Activate(true);
	Kolizija->bGenerateOverlapEvents = true;
	Kolizija->SetRelativeLocation(FVector(0,0,18.f));
	this->RootComponent = Krofna;
	Kolizija->AttachTo(RootComponent);
	Svetlo1->AttachTo(RootComponent);
	Svetlo2->AttachTo(RootComponent);
	Svetlo1->SetRelativeLocation(FVector(0, 0, 65));
	Svetlo2->SetRelativeLocation(FVector(0, 0, -45));
	Svetlo1->SetLightColor(FLinearColor(0.65f, 1.f, 0.875f));
	Svetlo2->SetLightColor(FLinearColor(0.45f, 1.f, 0.82f));
	this->DisableComponentsSimulatePhysics();
	Krofna->SetCollisionResponseToAllChannels(ECollisionResponse::ECR_Overlap);
	static ConstructorHelpers::FObjectFinder<UStaticMesh> Krofna_SM(TEXT("StaticMesh'/Game/StarterContent/Shapes/Shape_Torus.Shape_Torus'"));
	Krofna->SetStaticMesh(Krofna_SM.Object);


	static ConstructorHelpers::FObjectFinder<UMaterial> Krofna_M(TEXT("Material'/Game/StarterContent/Materials/M_Metal_Gold.M_Metal_Gold'"));
	Krofna->SetMaterial(0, Krofna_M.Object);

	Rotacija->SetActive(true);
	Rotacija->RotationRate = FRotator(120,120,120);

	this->SetActorEnableCollision(true);
	OnActorBeginOverlap.AddDynamic(this, &AKrofna_CPP::OnBeginOverlap);

	
}

void FComponentTypeRegistryData::AddBasicShapeComponents(TArray<FComponentClassComboEntryPtr>& SortedClassList)
{
	FString BasicShapesHeading = LOCTEXT("BasicShapesHeading", "Basic Shapes").ToString();

	const auto OnBasicShapeCreated = [](UActorComponent* Component)
	{
		UStaticMeshComponent* SMC = Cast<UStaticMeshComponent>(Component);
		if (SMC)
		{
			SMC->SetMaterial(0, LoadObject<UMaterial>(nullptr, TEXT("/Engine/BasicShapes/BasicShapeMaterial.BasicShapeMaterial")));
		}
	};

	{
		FComponentEntryCustomizationArgs Args;
		Args.AssetOverride = LoadObject<UStaticMesh>(nullptr, *UActorFactoryBasicShape::BasicCube.ToString());
		Args.OnComponentCreated = FOnComponentCreated::CreateStatic(OnBasicShapeCreated);
		Args.ComponentNameOverride = LOCTEXT("BasicCubeShapeDisplayName", "Cube").ToString();
		Args.IconOverrideBrushName = FName("ClassIcon.Cube");
		Args.SortPriority = 2;

		{
			FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(BasicShapesHeading, UStaticMeshComponent::StaticClass(), true, EComponentCreateAction::SpawnExistingClass, Args));
			SortedClassList.Add(NewShape);
		}

		{
			//Cube also goes in the common group
			FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(CommonClassGroup, UStaticMeshComponent::StaticClass(), false, EComponentCreateAction::SpawnExistingClass, Args));
			SortedClassList.Add(NewShape);
		}
	}

	{
		FComponentEntryCustomizationArgs Args;
		Args.AssetOverride = LoadObject<UStaticMesh>(nullptr, *UActorFactoryBasicShape::BasicSphere.ToString());
		Args.OnComponentCreated = FOnComponentCreated::CreateStatic(OnBasicShapeCreated);
		Args.ComponentNameOverride = LOCTEXT("BasicSphereShapeDisplayName", "Sphere").ToString();
		Args.IconOverrideBrushName = FName("ClassIcon.Sphere");
		Args.SortPriority = 2;
		{
			FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(BasicShapesHeading, UStaticMeshComponent::StaticClass(), true, EComponentCreateAction::SpawnExistingClass, Args));
			SortedClassList.Add(NewShape);
		}

		{
			// Sphere also goes in the common group
			FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(CommonClassGroup, UStaticMeshComponent::StaticClass(), false, EComponentCreateAction::SpawnExistingClass, Args));
			SortedClassList.Add(NewShape);
		}
	}

	{
		FComponentEntryCustomizationArgs Args;
		Args.AssetOverride = LoadObject<UStaticMesh>(nullptr, *UActorFactoryBasicShape::BasicCylinder.ToString());
		Args.OnComponentCreated = FOnComponentCreated::CreateStatic(OnBasicShapeCreated);
		Args.ComponentNameOverride = LOCTEXT("BasicCylinderShapeDisplayName", "Cylinder").ToString();
		Args.IconOverrideBrushName = FName("ClassIcon.Cylinder");
		Args.SortPriority = 3;
		FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(BasicShapesHeading, UStaticMeshComponent::StaticClass(), true, EComponentCreateAction::SpawnExistingClass, Args));
		SortedClassList.Add(NewShape);
	}

	{
		FComponentEntryCustomizationArgs Args;
		Args.AssetOverride = LoadObject<UStaticMesh>(nullptr, *UActorFactoryBasicShape::BasicCone.ToString());
		Args.OnComponentCreated = FOnComponentCreated::CreateStatic(OnBasicShapeCreated);
		Args.ComponentNameOverride = LOCTEXT("BasicConeShapeDisplayName", "Cone").ToString();
		Args.IconOverrideBrushName = FName("ClassIcon.Cone");
		Args.SortPriority = 4;
		FComponentClassComboEntryPtr NewShape = MakeShareable(new FComponentClassComboEntry(BasicShapesHeading, UStaticMeshComponent::StaticClass(), true, EComponentCreateAction::SpawnExistingClass, Args));
		SortedClassList.Add(NewShape);
	}
}

void AFlarePlanetarium::SetupCelestialBody(CelestialBodyPosition* BodyPosition, double DisplayDistance, double DisplayRadius)
{
	FVector PlayerShipLocation = FVector::ZeroVector;
	if (GetGame()->GetPC()->GetShipPawn())
	{
		PlayerShipLocation = GetGame()->GetPC()->GetShipPawn()->GetActorLocation();
	}

#ifdef PLANETARIUM_DEBUG
	DrawDebugSphere(GetWorld(), FVector::ZeroVector, DisplayDistance /1000 , 32, FColor::Blue, false);

	PlayerShipLocation = FVector::ZeroVector;
	DisplayRadius /= 1000;
	DisplayDistance /= 1000;
#endif

	BodyPosition->BodyComponent->SetRelativeLocation((DisplayDistance * BodyPosition->AlignedLocation.GetUnsafeNormal()).ToVector() + PlayerShipLocation);

	float Scale = DisplayRadius / 512; // Mesh size is 1024;
	BodyPosition->BodyComponent->SetRelativeScale3D(FPreciseVector(Scale).ToVector());

	FTransform BaseRotation = FTransform(FRotator(0, 0 ,90));
	FTransform TimeRotation = FTransform(FRotator(0, BodyPosition->TotalRotation, 0));

	FQuat Rotation = (TimeRotation * BaseRotation).GetRotation();

	// TODO Rotation float time interpolation
	BodyPosition->BodyComponent->SetRelativeRotation(FQuat::Identity);
	BodyPosition->BodyComponent->SetRelativeRotation(Rotation);

	// Apply sun direction to component
	UMaterialInstanceDynamic* ComponentMaterial = Cast<UMaterialInstanceDynamic>(BodyPosition->BodyComponent->GetMaterial(0));
	if (!ComponentMaterial)
	{
		ComponentMaterial = UMaterialInstanceDynamic::Create(BodyPosition->BodyComponent->GetMaterial(0) , GetWorld());
		BodyPosition->BodyComponent->SetMaterial(0, ComponentMaterial);
	}
	ComponentMaterial->SetVectorParameterValue("SunDirection", SunDirection.ToVector());

	// Look for rings and orient them
	TArray<USceneComponent*> RingCandidates;
	BodyPosition->BodyComponent->GetChildrenComponents(true, RingCandidates);
	for (int32 ComponentIndex = 0; ComponentIndex < RingCandidates.Num(); ComponentIndex++)
	{
		UStaticMeshComponent* RingComponent = Cast<UStaticMeshComponent>(RingCandidates[ComponentIndex]);

		if (RingComponent && RingComponent->GetName().Contains("ring"))
		{
			// Get or create the material
			UMaterialInstanceDynamic* RingMaterial = Cast<UMaterialInstanceDynamic>(RingComponent->GetMaterial(0));
			if (!RingMaterial)
			{
				RingMaterial = UMaterialInstanceDynamic::Create(RingComponent->GetMaterial(0), GetWorld());
				RingComponent->SetMaterial(0, RingMaterial);
			}

			// Get world-space rotation angles for the ring and the sun
			float SunRotationPitch = FMath::RadiansToDegrees(FMath::Atan2(SunDirection.Z,SunDirection.X)) + 180;
			float RingRotationPitch = -BodyPosition->TotalRotation;

			// Feed params to the shader
			RingMaterial->SetScalarParameterValue("RingPitch", RingRotationPitch / 360);
			RingMaterial->SetScalarParameterValue("SunPitch", SunRotationPitch / 360);
		}
	}

	// Sun also rotates to track direction
	if (BodyPosition->Body == &Sun)
	{
		BodyPosition->BodyComponent->SetRelativeRotation(SunDirection.ToVector().Rotation());
	}

	// Compute sun occlusion
	if (BodyPosition->Body != &Sun)
	{
		double OcclusionAngle = FPreciseMath::Asin(BodyPosition->Radius / BodyPosition->Distance);



		float BodyPhase =  FMath::UnwindRadians(FMath::Atan2(BodyPosition->AlignedLocation.Z, BodyPosition->AlignedLocation.X));
		float CenterAngularDistance = FMath::Abs(FMath::UnwindRadians(SunPhase - BodyPhase));
		float AngleSum = (SunOcclusionAngle + OcclusionAngle);
		float AngleDiff = FMath::Abs(SunOcclusionAngle - OcclusionAngle);

		/*FLOGV("SetupCelestialBody %s BodyPhase = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(BodyPhase));
		FLOGV("SetupCelestialBody %s SunPhase = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(SunPhase));
		FLOGV("SetupCelestialBody %s OcclusionAngle = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(OcclusionAngle));
		FLOGV("SetupCelestialBody %s SunOcclusionAngle = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(SunOcclusionAngle));
		FLOGV("SetupCelestialBody %s AngleDiff = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(AngleDiff));

		FLOGV("SetupCelestialBody %s CenterAngularDistance = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(CenterAngularDistance));
		FLOGV("SetupCelestialBody %s AngleSum = %f", *BodyPosition->Body->Name.ToString(), FMath::RadiansToDegrees(AngleSum));*/


		if (CenterAngularDistance < AngleSum)
		{
			// There is occlusion
			float OcclusionRatio;

			if (CenterAngularDistance < AngleDiff)
//.........这里部分代码省略.........