import { ILogger, Texture, Transform, vec2 } from '@gltf-transform/core';
import { Config } from '../config/index.js';
declare interface ProgressiveOptions {
    path: string | Array<string>;
    /** Directory to output progressive assets to */
    outpath?: string;
    results: Array<string>;
    config: Config;
    debug?: boolean;
    verbose?: boolean;
    useCache?: boolean;
    logger: ILogger;
}
export declare function make_progressive(opts: ProgressiveOptions): Promise<boolean>;
export declare function createTransform(name: string, fn: Transform): Transform;
export declare function make_progressive_textures(filePath: string, _options: TextureResizeOptions, opts: ProgressiveOptions): Transform;
/** Options for the {@link textureResize} function. */
export interface TextureResizeOptions {
    /**
     * Maximum width/height to enforce, preserving aspect ratio. For example,
     * a 4096x8192 texture, resized with limit [2048, 2048] will be reduced
     * to 1024x2048.
     */
    size: vec2;
    /** Resampling filter method. LANCZOS3 is sharper, LANCZOS2 is smoother. */
    filter?: TextureResizeFilter;
    /** Pattern identifying textures to resize, matched to name or URI. */
    pattern?: RegExp | null;
    /** Pattern to match slots usage for resizing. */
    slots?: RegExp | null;
}
/** Resampling filter methods. LANCZOS3 is sharper, LANCZOS2 is smoother. */
export declare enum TextureResizeFilter {
    /** Lanczos3 (sharp) */
    LANCZOS3 = "lanczos3",
    /** Lanczos2 (smooth) */
    LANCZOS2 = "lanczos2"
}
export declare const TEXTURE_RESIZE_DEFAULTS: TextureResizeOptions;
export declare function resizeTextureToMax(texture: Texture, maxSize: number, logger: ILogger): Promise<void>;
export declare function make_progressive_meshes(filePath: string, _options: any, opts?: ProgressiveOptions): Transform;
export declare function isMeshLOD(filepath: string): boolean;
export declare function isImageLOD(filepath: string): boolean;
export declare function isLOD(filepath: string): boolean;
export {};