Manuals of ComponentCameraSystem
  • Introduction
  • Basic Uses
    • General Workflow
    • Working with Sequencer
    • Third Person Camera
    • Lock-On Camera
    • Camera Shake
    • Camera Postprocessing
    • Camera Lens Effect
    • Camera Dither Fade
    • Photo Mode (Experimental)
    • Other Features
    • FAQ
  • Advanced Uses
    • Change Component Properties at Runtime
    • Customizing Camera Components
      • Customizing ECameraComponentFollow, ECameraComponentAim and ECameraExtensionBase
      • Customizing Existing Components: ControlAim as An Example
      • Customizing ECameraGroupActorComponent
      • Customizing ECameraHUD
      • Customizing EPlayerCameraManager
    • Camera Dampers
    • Animating Camera
    • Mixing Camera
    • Sequenced Camera
    • Keyframing Camera
    • ArchViz Camera
    • Integrating with Montage
    • Integrating with Gameplay Ability System (GAS)
  • Showcases
    • Boss Battle Camera
    • Group Aim Camera
    • Orbit Camera
    • Rail Camera
    • Crane Camera
    • Third Person Framing Camera
    • First Person Shooter Camera
    • Pseudo First Person Shooter Camera
    • Static Camera
    • Only Follow Camera
    • Only Aim Camera
  • Camera Components
    • Follow Components
      • ScreenFollow
      • SimpleFollow
      • HardLockFollow
      • OrbitFollow
      • RailFollow
      • CraneFollow
    • Aim Components
      • TargetingAim
      • HardLockAim
      • ControlAim
    • Extension Components
      • ResolveOcclusionExtension
      • MixingCameraExtension
      • ConfinerExtension
      • ResolveGroupActorExtension
      • AnimatedCameraExtension
      • KeyframeExtension
      • ConstrainPitchExtension
      • ModifyAimPointExtension
      • VelocityBasedRollingExtension
    • Miscellaneous
      • Photo Camera
      • Animated Camera
      • Keyframed Camera
      • ArchViz Camera
      • ArchViz CineCamera
      • ArchViz Camera Component
      • ArchViz CineCamera Component
      • Sequenced Camera Actor
      • Group Actor Component
      • CameraModifier_CameraShake
      • PCMGNeuralNetwork
      • ECamera Shake Source Actor
  • Blueprint Nodes List
    • ECameraBase
    • ECameraSettingsComponent
    • EPlayerCameraManager
    • ECameraLibrary
    • ECameraGroupActorComponent
    • RailFollow
    • ScreenFollow
    • ControlAim
    • MixingCameraExtension
    • VelocityBasedRollingExtension
  • Code Framework
    • Code Framework
  • Changelog
    • Changelog
      • V0.1.x
      • V0.2.x
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  1. Code Framework

Code Framework

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Last updated 1 year ago

ComponentCameraSystem has a very clear and intelligible code framework. If you open up the source code folder, you can notice the whole codebase consists of four parts:

  • Components: contains individual component that alters camera position or rotation.

  • Core: contains fundamental actors/components that are used to compose components and manage cameras.

  • Extensions: contains individual extension that alters camera position or rotation after basic components are evaluated.

  • Utils: utilities that support blueprinting, debugging and particular components/extensions.

From a high-level view, each camera is a ECameraBase class actor, and it contains a ECameraComponentFollow class type object, a ECameraComponentAim object and possible multiple ECameraExtensionBase objects. Each component/extension has a UpdateComponent method which is implemented to change camera properties such as position, rotation and FOV. For example, the TargetingAim component enforces camera to always look at a given target actor in the level. All cameras are referred by the ECameraManager actor responsible for transitioning to the next valid camera when current camera expires.

Feel free to examine the code and modify it to meet your needs.