IXRCamera.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "HeadMountedDisplayTypes.h"
#include "IIdentifiableXRDevice.h"
// @todo : needed because of EStereoscopicPass in clang; does not allow enum forward references.
//         We could remove this if EStereoscopicPass was a typed-enum.
#include "StereoRendering.h"
 
class APlayerController;
class FSceneInterface;
class USceneComponent;
 
class  IXRCamera : public IIdentifiableXRDevice
{
public:
    IXRCamera() {}
    
    virtual void UseImplicitHMDPosition(bool bInImplicitHMDPosition) = 0;
 
    virtual bool GetUseImplicitHMDPosition() const = 0;
 
    virtual void ApplyHMDRotation(APlayerController* PC, FRotator& ViewRotation) = 0;
 
    virtual bool UpdatePlayerCamera(FQuat& CurrentOrientation, FVector& CurrentPosition, float DeltaTime) = 0;
    
    virtual void OverrideFOV(float& InOutFOV) = 0;
 
    virtual void SetupLateUpdate(const FTransform& ParentToWorld, USceneComponent* Component, bool bSkipLateUpdate) = 0;
 
    virtual void CalculateStereoCameraOffset(const int32 ViewIndex, FRotator& ViewRotation, FVector& ViewLocation) = 0;
 
    virtual bool GetPassthroughCameraUVs_RenderThread(TArray<FVector2D>& OutUVs) { return false; }
};