OnCameraUpdate - First person mesh rotating

[SphinxIsHere]

Hello,

I’m currently busy with an issue that I cant solve alone, its just beyond me.

I already watched at this post and tried to figure out what I’m doing wrong but I cant solve it.

Need help with matrices

Environment:

• I have a CameraSpringArm attachted to a socket and a camera attached to the arm.

  CameraSpringArm = ObjectInitializer.CreateDefaultSubobject(this, TEXT(“SpringArm”));
  CameraSpringArm->SetupAttachment(Mesh1P, TEXT(“Socket_FP”));

  Camera1P = ObjectInitializer.CreateDefaultSubobject(
  this, TEXT(“CharacterCamera1P”));
  Camera1P->SetupAttachment(CameraSpringArm);

• I’m using the PlayerCameraManager to update my first person mesh using the ***PlayerCameraManager::UpdateCamera(float DeltaTime)

   void ***PlayerCameraManager::UpdateCamera(float DeltaTime)
   {
     // Get pawn
     auto MyPawn = PCOwner ? Cast<ATHCharacter>(PCOwner->GetPawn()) : nullptr;
     if (!MyPawn || !MyPawn->IsFirstPerson())
       return Super::UpdateCamera(DeltaTime);
   
     Super::UpdateCamera(DeltaTime);
     MyPawn->OnCameraUpdate(GetCameraLocation(), GetCameraRotation());
   }
  

• I already replaced the function with: (Then my character is rising higher and higher)

    void ***Character::OnCameraUpdate(const FVector& CameraLocation,
                                      const FRotator& CameraRotation)
    {
      Mesh1P->SetRelativeLocationAndRotation(origin, PitchedMesh.Rotator(), false, nullptr, ETeleportType::TeleportPhysics);*/
      const FRotator RotCameraPitch(CameraRotation.Pitch, 0.0f, 0.0f);
      const FRotator RotCameraYaw(0.0f, CameraRotation.Yaw, 0.0f);
      USkeletalMeshComponent* DefMesh1P = Cast<USkeletalMeshComponent>(GetClass()->GetDefaultSubobjectByName(TEXT("PawnMesh1P")));
    
      const FMatrix CameraTranslationMatrix = FTranslationMatrix(CameraLocation);
      const FMatrix StartingTranslationMatrix = FTranslationMatrix(DefMesh1P->RelativeLocation);
      const FMatrix StartingRotationMatrix = FRotationMatrix(DefMesh1P->RelativeRotation);
      const FMatrix PitchedMatrix = FRotationMatrix(RotCameraPitch);
      const FMatrix YawedMatrix = FRotationMatrix(RotCameraYaw);
      const FMatrix ResultMatrix = StartingTranslationMatrix * StartingRotationMatrix * PitchedMatrix * YawedMatrix * CameraTranslationMatrix;
      Mesh1P->SetWorldLocationAndRotation(ResultMatrix.GetOrigin(), ResultMatrix.Rotator());
    }
  

• With the original template code from the ShooterGame my mesh is rotating when I look up or down

   void ***Character::OnCameraUpdate(const FVector& CameraLocation,
                                      const FRotator& CameraRotation)
    {
      auto DefMesh1P = Cast<USkeletalMeshComponent>(
          GetClass()->GetDefaultSubobjectByName(TEXT("PawnMesh1P")));
      const FMatrix DefMeshLS = FRotationTranslationMatrix(
          DefMesh1P->RelativeRotation, DefMesh1P->RelativeLocation);
      const FMatrix LocalToWorld = ActorToWorld().ToMatrixWithScale();
    
      // Mesh rotating code expect uniform scale in LocalToWorld matrix
    
      const FRotator RotCameraPitch(CameraRotation.Pitch, 0.0f, 0.0f);
      const FRotator RotCameraYaw(0.0f, CameraRotation.Yaw, 0.0f);
    
      const FMatrix LeveledCameraLS =
          FRotationTranslationMatrix(RotCameraYaw, CameraLocation) *
          LocalToWorld.Inverse();
      const FMatrix PitchedCameraLS =
          FRotationMatrix(RotCameraPitch) * LeveledCameraLS;
      const FMatrix MeshRelativeToCamera = DefMeshLS * LeveledCameraLS.Inverse();
      const FMatrix PitchedMesh = MeshRelativeToCamera * PitchedCameraLS;
    
      Mesh1P->SetRelativeLocationAndRotation(PitchedMesh.GetOrigin(),
                                             PitchedMesh.Rotator());
    }