I cant setting material with texture

zyyyye · October 10, 2024, 2:21pm

Hi, I am trying to create mesh to show the scenecapture. I successfully get the captureScene, but i cant show the texture on materials. it seems i should use another first parameter of SetTextureParameterValue function. Which one should use?

void ATestPortal::BeginPlay()
{
	Super::BeginPlay();

	TextureRenderTarget2D = NewObject<UTextureRenderTarget2D>(this, UTextureRenderTarget2D::StaticClass());
	TextureRenderTarget2D->InitAutoFormat(1920, 1080);
	TextureRenderTarget2D->UpdateResourceImmediate(true);

	SceneCaptureComponent2D->TextureTarget = TextureRenderTarget2D;
	SceneCaptureComponent2D->CaptureScene();

	UMaterialInterface* M = MeshComponent->GetMaterial(0);
	MaterialInstance = UMaterialInstanceDynamic::Create(M, this, TEXT("MaterialInstance"));
	
	UMaterialExpressionTextureSample* TextureSample = NewObject<UMaterialExpressionTextureSample>(this);
	TextureSample->SamplerType = EMaterialSamplerType::SAMPLERTYPE_LinearColor;
	TextureSample->Texture = TextureRenderTarget2D;

	MaterialInstance->SetTextureParameterValue(TEXT("Image"), SceneCaptureComponent2D->TextureTarget);
	//MaterialInstance->SetVectorParameterValue(TEXT("Color"), FLinearColor::Red);
	MeshComponent->SetMaterial(0, MaterialInstance);
}