Object3D → Line → LineSegments →

CameraHelper

This helps with visualizing what a camera contains in its frustum.
It visualizes the frustum of a camera using a LineSegments.

Code Example


    const camera = new v3d.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
    const helper = new v3d.CameraHelper(camera);
    app.scene.add(helper);

Constructor

CameraHelper(camera : Camera)

camera — The camera to visualize.

This create a new CameraHelper for the specified camera.

Properties

See the base LineSegments class for common properties.

# .camera : Camera

The camera being visualized.

# .pointMap : Object

This contains the points used to visualize the camera.

# .matrix : Object

Reference to the camera.matrixWorld.

# .matrixAutoUpdate : Object

See Object3D.matrixAutoUpdate. Set to false here as the helper is using the camera's matrixWorld.

Methods

See the base LineSegments class for common methods.

# .dispose()

Frees the GPU-related resources allocated by this instance. Call this method whenever this instance is no longer used in your app.

# .setColors(frustum : Color, cone : Color, up : Color, target : Color, cross : Color) → this

Defines the colors of the helper.

# .update()

Updates the helper based on the projectionMatrix of the camera.

Source

For more info on how to obtain the source code of this module see this page.