/**
 * Material System
 *
 * Simple material system optimized for low-poly modeling and game engines
 *
 * Materials are:
 * - Texture references
 * - Shading modes (flat/smooth)
 * - Render settings (alpha, emissive, etc.)
 * - Face grouping mechanism
 */
/**
 * Material shading mode
 */
export type MaterialShading = 'flat' | 'smooth';
/**
 * Material alpha mode
 */
export type MaterialAlpha = 'opaque' | 'cutout' | 'blend';
/**
 * Material data interface
 */
export interface MaterialData {
    name?: string;
    texture?: string | null;
    shading?: MaterialShading;
    alpha?: MaterialAlpha;
    emissive?: boolean;
    double_sided?: boolean;
    visible?: boolean;
    [key: string]: any;
}
/**
 * Material class
 *
 * Represents a material in the model.
 * Materials are stored in the project and referenced by faces via index.
 */
export declare class Material {
    uuid: string;
    name: string;
    texture: string | null;
    shading: MaterialShading;
    alpha: MaterialAlpha;
    emissive: boolean;
    double_sided: boolean;
    visible: boolean;
    constructor(data?: MaterialData, uuid?: string);
    /**
     * Extend material with new data
     */
    extend(data: MaterialData): this;
    /**
     * Get save copy of material
     */
    getSaveCopy(): MaterialData;
    /**
     * Get undo copy of material
     */
    getUndoCopy(): MaterialData;
    /**
     * Clone material
     */
    clone(): Material;
    /**
     * Check if material is opaque
     */
    get isOpaque(): boolean;
    /**
     * Check if material is transparent
     */
    get isTransparent(): boolean;
    /**
     * Check if material uses flat shading
     */
    get isFlatShaded(): boolean;
    /**
     * Check if material uses smooth shading
     */
    get isSmoothShaded(): boolean;
}
//# sourceMappingURL=material.d.ts.map