Ideas needed for possible in-game recording options

Development Programming & Scripting C++
8

I was able to get the UMovieSceneCapture working on my end, so I believe I should be able to help you figure out what’s going wrong on your end.

With just the information that you provided that UMovieSceneCapture::Initialize is causing the project to crash, I would guess that the problem is that scene_vieport is null and you’re passing that into Initialize.

Here is a function I am calling in an actor component class I created that gets created in my player controller class. I’m calling InitializeSceneCapture in UMyActorComponent::BeginPlay.

void UMyActorComponent::InitializeSceneCapture()
{
    const UWorld* World = this->GetWorld();

    if (!World)
    {
        UE_LOG(LogMyActorComponent, Error, TEXT("InitializeSceneCapture: World was invalid"));

        return;
    }

    UGameViewportClient* GameViewportClient = World->GetGameViewport();

    if (!GameViewportClient)
    {
        UE_LOG(LogMyActorComponent, Error, TEXT("InitializeSceneCapture: Unable to get GameViewport"));

        return;
    }

    TSharedPtr<SViewport> GameViewportWidget = GameViewportClient->GetGameViewportWidget();

    if (!GameViewportWidget)
    {
        UE_LOG(LogMyActorComponent, Error, TEXT("InitializeSceneCapture: Unable to get GameViewport widget"));

        return;
    }

    TSharedPtr<FSceneViewport> SceneViewportPtr = MakeShareable(new FSceneViewport(GameViewportClient, GameViewportWidget));

    if (!SceneViewportPtr)
    {
        UE_LOG(LogMyActorComponent, Error, TEXT("InitializeSceneCapture: Unable to create pointer to TSharedPtr<FSceneViewport>"));

        return;
    }

    if (!this->MovieSceneCapture)
    {
        UE_LOG(LogMyActorComponent, Error, TEXT("InitializeSceneCapture: MovieSceneCapture was invalid"));

        return;
    }

    this->InitializeSceneCaptureSettings();

    this->MovieSceneCapture->Initialize(SceneViewportPtr, 0);
    this->MovieSceneCapture->StartWarmup();
    this->MovieSceneCapture->StartCapture();
}

This is working for me, so I think

scene_viewport here is most likely null and that’s causing UMovieSceneCapture::Initialize to crash.

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