import { TextureObject } from '../classes/textureobject';
export declare function getTextureExtensionFromUrl(url: string): string | undefined;
/**
 * Creates a texture filename from a texture entry object.
 * The filename is in following pattern:
 * `{materialId}___{mapping}_{mmWidth}x{mmHeight}_tileable.{extension}`
 * E.g. wood___RGB_500x500_tileable.png
 * @param textureEntry Texture entry object as it comes from the RAPI (includes material (= material's combined id) or id, mmWidth, mmHeight, mapping, tileable, image (= url))
 * @param options
 *  if !includeId, the externalId before ___ is omitted -> RGB_500x500_tileable.png
 *  if onlyMapping, only the mapping is included (e.g. RGB), all other properties are omitted -> RGB.png
 * @returns
 */
export declare function createTextureFileName(textureEntry: TextureObject | any, options?: {
    includeId?: boolean;
    onlyMapping?: boolean;
}): string;
/**
 * Inverse function to the createTextureFileName function.
 * Gets information about the texture from the filename in the pattern:
 * `{materialId}___{mapping}_{mmWidth}x{mmHeight}_tileable.{extension}`
 * If this comes from an unreliable source (e.g. user input), the result should be handled with care and checked for meaningfulness.
 * @param fileName
 * @returns
 *  object with properties:
 *      id - externalId part before ___, might be undefined if not present
 *      mapping,
 *      mmWidth, mmHeight, if \d+x\d+ part is present and valid numbers
 *      extension - the last part after the last dot, if it is a valid image extension
 *    these properties might be undefined if not present in the filename
 *      tileable is either true if the word is present, or false if the word is not present
 *  undefined if the filename cannot be parsed (e.g. more than one ___ present) or if at least id, size or tileable information is not present
 */
export declare function parseTextureFileName(fileName: string): {
    id?: string;
    mapping?: string;
    mmWidth?: number;
    mmHeight?: number;
    tileable?: boolean;
    extension?: string;
} | undefined;