The GetFrustum method of the SceneCamera class is used to retrieve the viewing frustum of the camera based on a specified pixel rectangle. The frustum is a geometric representation of the camera's field of view, which is used to determine what is visible on the screen.
To use the GetFrustum method, you need to provide a Rect object that defines the pixel rectangle for which you want to calculate the frustum. This method returns a Frustum object that represents the calculated viewing frustum.
// Create a SceneCamera instance SceneCamera camera = new SceneCamera(); // Define a pixel rectangle Rect pixelRect = new Rect(0, 0, 1920, 1080); // Get the frustum for the specified pixel rectangle Frustum frustum = camera.GetFrustum(pixelRect); // Use the frustum for further operations // For example, checking if a point is within the frustum Vector3 point = new Vector3(10, 20, 30); bool isPointInFrustum = frustum.Contains(point);
