/** Copyright (c) 2021 The v3d Authors. All rights reserved.
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
 * You can obtain one at http://mozilla.org/MPL/2.0/.
 */
import { AbstractMesh, Nullable, ShadowGenerator, Skeleton, SkeletonViewer } from "@babylonjs/core";
import V3DCore from "./v3d-core";
export declare class V3DHelper {
    private readonly core;
    constructor(core: V3DCore);
    /**
     * Make a node cast shadow from a ShadowGenerator
     * @param shadowGenerator
     * @param nodeName
     */
    addNodeToShadowCasterByName(shadowGenerator: Nullable<ShadowGenerator>, nodeName: string): void;
    /**
     * Make nodes cast shadow from a ShadowGenerator
     * @param shadowGenerator
     * @param nodeName
     */
    addNodeToShadowCasterContainsName(shadowGenerator: Nullable<ShadowGenerator>, nodeName: string): void;
    /**
     * Make node receive shadow
     * @param nodeName
     */
    makeReceiveShadowByName(nodeName: string): void;
    /**
     * Make nodes receive shadow
     * @param nodeName
     */
    makeReceiveShadowContainsName(nodeName: string): void;
    showSkeletonDebug(skeleton: Skeleton, mesh: AbstractMesh): SkeletonViewer;
}