import { Object3D } from 'three';
import { IntersectionExt } from '../events/Events.js';
/**
 * Represents the prototype for extending Scene functionality.
 */
export interface SceneExtPrototype {
    /**
       * A flag indicating whether continuous raycasting is enabled (default: false).
       * When set to true, main raycasting occurs every frame, while false triggers raycasting only upon mouse movement.
       * Additionally, if set to true, the 'pointerintersection' event will be fired every frame.
       */
    continuousRaycasting: boolean;
    /**
       * A flag indicating whether continuous raycasting is enabled when searching for drop targets (default: false).
       * When set to true, main raycasting for drop targets occurs every frame, while false triggers it only upon mouse movement.
       * Additionally, if set to true, the 'dragover' event will be fired every frame.
       */
    continuousRaycastingDropTarget: boolean;
    /** An array of intersections computed from the pointer (primary pointer only). */
    intersections: IntersectionExt[];
    /** An array of intersections computed from the pointer if an object is dragged and has 'findDropTarget' set to true (primary pointer only). */
    intersectionsDropTarget: IntersectionExt[];
    /** A reference to the currently focused Object3D within the scene. */
    focusedObject: Object3D;
    /**
       * A flag indicating whether to blur the focused Object3D when clicking outside of any object.
       */
    blurOnClickOut: boolean;
    /** The time scale for scene animations. */
    timeScale: number;
    /** The total time elapsed in the scene. */
    totalTime: number;
    /**
       * Activates smart rendering for the scene.
       * @returns The updated instance of the scene.
       */
    activeSmartRendering(): this;
    /**
       * Sets the focus to the specified Object3D within the scene, or clears the focus if no target is provided.
       * @param target Optional. The Object3D to focus on. If not provided, the focus is cleared.
       */
    focus(target?: Object3D): void;
}
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