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debug_camera.md

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Tool for getting another perspective to the scene, also known as fly camera.

bevy_dev_.Debug.camera.for.Bevy.engine._.Fly.camera.mp4

Requires [crate::ui::DebugUiPlugin] if ui feature is enabled.

Behavior

Movement

To move debug camera use:

  • W - move forward
  • S - move backward
  • A - move left
  • D - move right
  • E - move up
  • Q - move down

Debug camera speed accelerates during flight, and can be multipled by mouse scrolling.

To rotate debug camera, user must move cursor in window.

Debug camera movement is similar to another game engines like Unity or Unreal Engine.

Controls can be modified via [crate::debug_camera::DebugCameraControls].

Management

When [crate::debug_camera::DebugCameraPlugin::switcher] is set to default or active, program will be listen to user input to allow him to manage of debug cameras.

Switching

Switching UI

Pressing ShiftLeft + Tab select last used debug camera. Every next clicking Tab selecting next earlier and earlier debug camera, using wrapping. Switching is applied after release ShiftLeft.

Switching works similar to Alt + Tab in Microsoft Windows.

If any debug camera not exist, this shortcut will create, and switch to one from transform of current used camera.

Feature ui enabled

Switching have their UI what visualize current state. Also if [crate::debug_camera::DebugCameraPlugin::show_preview] is active, every debug camera show their preview as rendered image.

Preview is rendered only when UI is showed, and rendered in low resolution. Only one debug camera refresh their preview in one frame, what do not affect performance so much.

Spawning new debug camera

ShiftLeft + F1 create, and switch to new debug camera from transform of current used camera.

Returning to game camera

ShiftLeft + Escape deactivate current use debug camera, and restore window to use previous game camera.

Controls can be modified via [crate::debug_camera::DebugCameraControls].

Auto spawning

When[crate::debug_camera::DebugCameraPlugin::spawn_debug_camera_if_any_camera_exist] is active, then in every PostUpdate frame debug camera will be created, and used if any camera exists.