Camera

The camera is used to render a scene from a specific viewpoint, and has parameters including position, orientation, field of view, and projection mode[1][2] (orthographic or perspective).

Engine Details

The calling sequence the engine uses to determine the camera position for each viewport are[3]:

1. UGameViewportClient::Draw
   

2. ULocalPlayer::CalcSceneView
   

3. [https://api.unrealengine.com/INT/API/Runtime/Engine/Engine/ULocalPlayer/GetViewPoint/index.html ULocalPlayer::GetViewPoint]
   

4. [https://api.unrealengine.com/INT/API/Runtime/Engine/GameFramework/APlayerController/GetPlayerViewPoint/index.html APlayerController::GetPlayerViewPoint]
   

   to determine position

   APlayerCameraManager::GetFOVAngle
   

   to determine the field of view.

5. APlayerController::GetViewTarget
   

6. APlayerCameraManager::GetViewTarget
   

   to determine the camera position and orientation.

Further Reading

Documentation

• Using Cameras | Unreal Engine Documentation
• Adding Camera Shake | Live Training | Unreal Engine
• Camera Animation

API

• Camera Component
• Player Camera Manager
  • Configured via APlayerController::PlayerCameraManagerClass
• Camera Modifier
• Post Process Component
• Post Process Volumes
• Post Process Settings

References

1. 3D Projection | Wikipedia
2. Camera matrix | Wikipedia
3. | UE4Examples