import { ContextManager, Observable } from '@zcomponent/core';
import { StaticGroup } from '../StaticObject3D';
import { AnchorOnNotVisibleEvent, AnchorOnVisibleEvent } from '../../events/events';
import * as Zappar from '@zappar/zappar';
import { Event } from '@zcomponent/core';
interface FaceAnchorGroupConstructorProps {
    /** @zprop
     * @zdefault "0"
     */
    anchorID: string;
    /**
     * @zprop
     * @zdefault true
     */
    showPreviewAtDesignTime: boolean;
}
/**
 * @zcomponent
 * @zicon face
 * @zgroup AR
 * @ztag three/Object3D/Group/Zappar/FaceAnchorGroup
 * @ztag three/Object3D/Group/Zappar/Anchor
 * @zlabel three/Object3D/Group/Zappar/FaceAnchorGroup
 * @zparents three/Zappar/FaceTracker
 * @zdefaultchild "Head Mask Mesh" "@zcomponent/zappar-three/lib/components/meshes/HeadMaskMesh#HeadMaskMesh"
 * @zdefaultchild "Left Eye" "@zcomponent/zappar-three/lib/components/anchorgroups/FaceLandmarkGroup#FaceLandmarkGroup" landmarkPosition="EYE_LEFT"
 * @zdefaultchild "Right Eye" "@zcomponent/zappar-three/lib/components/anchorgroups/FaceLandmarkGroup#FaceLandmarkGroup" landmarkPosition="EYE_RIGHT"
 * @zdefaultchild "Mouth Center" "@zcomponent/zappar-three/lib/components/anchorgroups/FaceLandmarkGroup#FaceLandmarkGroup" landmarkPosition="MOUTH_CENTER"
 * @zdefaultchild Chin "@zcomponent/zappar-three/lib/components/anchorgroups/FaceLandmarkGroup#FaceLandmarkGroup" landmarkPosition="CHIN"
 */
export declare class FaceAnchorGroup extends StaticGroup {
    anchorVisible: Observable<boolean, never>;
    /** @zprop */
    onAnchorVisible: Event<[AnchorOnVisibleEvent<Zappar.FaceAnchor>]>;
    /** @zprop */
    onAnchorNotVisible: Event<[AnchorOnNotVisibleEvent<Zappar.FaceAnchor>]>;
    /**
     * @zui
     * @zgroup Animation
     * @zgrouppriority 10
     * @zvalues layerclipids
     */
    visibleLayerClip: Observable<string | undefined, never>;
    /**
     * @zui
     * @zgroup Animation
     * @zgrouppriority 10
     * @zvalues layerclipids
     */
    notVisibleLayerClip: Observable<string | undefined, never>;
    anchorID: string;
    anchor?: Zappar.FaceAnchor;
    private _context;
    private _faceTrackerContext;
    private _innerGroup;
    private _faceAnchorContext;
    private _previewGeometry?;
    private _previewMaterial?;
    constructor(ctx: ContextManager, props: FaceAnchorGroupConstructorProps);
    private _frame;
    private _setupPreview;
    dispose(): never;
}
export {};