import { TextLayout, Glyph } from './TextLayout';
import * as BABYLON from "@babylonjs/core";
/**
 * Text mesh vertex attributes
 */
export interface TextMeshAttributes {
    uvs: Float32Array;
    layoutUvs: Float32Array;
    positions: Float32Array;
    centers: Float32Array;
}
/**
 * Text mesh vertex infos
 */
export interface TextMeshInfos {
    linesTotal: number;
    lineIndex: Float32Array;
    lineLettersTotal: Float32Array;
    lineLetterIndex: Float32Array;
    lineWordsTotal: Float32Array;
    lineWordIndex: Float32Array;
    wordsTotal: number;
    wordIndex: Float32Array;
    lettersTotal: number;
    letterIndex: Float32Array;
}
/**
 * Text mesh attributes utilities
 */
export declare namespace TextMeshAttributes {
    /**
     * Creates vertex attributes for text mesh
     */
    function create(glyphs: Glyph[], texWidth: number, texHeight: number, flipY: boolean, layout: TextLayout): TextMeshAttributes;
    /**
     * Sets custom vertex attributes on mesh
     */
    function setCustomAttributes(engine: BABYLON.Engine, mesh: BABYLON.Mesh, attributes: TextMeshAttributes): void;
}
/**
 * Text mesh infos utilities
 */
export declare namespace TextMeshInfos {
    /**
     * Creates vertex infos for text mesh
     */
    function create(glyphs: Glyph[]): TextMeshInfos;
    /**
     * Sets custom vertex infos on mesh
     */
    function setCustomAttributes(engine: BABYLON.Engine, mesh: BABYLON.Mesh, infos: TextMeshInfos): void;
}