import { ArrayLike } from '@gglib/math';
import { FrontFace } from '../enums';
import { ModelBuilderChannelMap } from '../model/ModelBuilderChannel';
/**
 * Recalculates the normals for each vertex
 *
 * @public
 * @remarks channels must contain a `normal` and a `position` channel
 */
export declare function calculateNormals(indices: ArrayLike<number>, channels: ModelBuilderChannelMap, vCount: number, frontFace?: FrontFace): void;
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