/**
 * Material Operations
 *
 * Functions for creating, managing, and assigning materials
 */
import { Material, MaterialData, MaterialShading, MaterialAlpha } from './material';
import { Project } from '../project/project';
import { Mesh } from '../geometry/mesh';
import { MeshFace } from '../geometry/mesh_face';
import { Cube } from '../geometry/cube';
import { CubeFace } from '../geometry/cube_face';
import { Texture } from '../texturing/texture';
/**
 * Create a new material
 */
export declare function createMaterial(project: Project, data?: MaterialData): Material;
/**
 * Get material by UUID
 */
export declare function getMaterial(project: Project, materialUuid: string): Material | null;
/**
 * Get material by index
 */
export declare function getMaterialByIndex(project: Project, index: number): Material | null;
/**
 * Find material index by UUID
 */
export declare function findMaterialIndex(project: Project, materialUuid: string): number;
/**
 * Delete material
 */
export declare function deleteMaterial(project: Project, materialUuid: string): boolean;
/**
 * Update material
 */
export declare function updateMaterial(project: Project, materialUuid: string, data: Partial<MaterialData>): boolean;
/**
 * Assign material to mesh faces
 */
export declare function assignMaterialToFaces(mesh: Mesh, materialUuid: string, faceKeys?: string[]): number;
/**
 * Assign material to cube faces
 */
export declare function assignMaterialToCubeFaces(cube: Cube, materialUuid: string, faceDirections?: Array<'north' | 'south' | 'east' | 'west' | 'up' | 'down'>): number;
/**
 * Get faces using a material
 */
export declare function getFacesUsingMaterial(project: Project, materialUuid: string): Array<{
    element: Mesh | Cube;
    face: MeshFace | CubeFace;
    key: string;
}>;
/**
 * Set material texture
 */
export declare function setMaterialTexture(project: Project, materialUuid: string, textureUuid: string | null): boolean;
/**
 * Set material shading mode
 */
export declare function setMaterialShading(project: Project, materialUuid: string, shading: MaterialShading): boolean;
/**
 * Set material alpha mode
 */
export declare function setMaterialAlpha(project: Project, materialUuid: string, alpha: MaterialAlpha): boolean;
/**
 * Set material emissive
 */
export declare function setMaterialEmissive(project: Project, materialUuid: string, emissive: boolean): boolean;
/**
 * Set material double-sided
 */
export declare function setMaterialDoubleSided(project: Project, materialUuid: string, double_sided: boolean): boolean;
/**
 * Duplicate material
 */
export declare function duplicateMaterial(project: Project, materialUuid: string): Material | null;
/**
 * Get material count
 */
export declare function getMaterialCount(project: Project): number;
/**
 * Get all materials
 */
export declare function getAllMaterials(project: Project): Material[];
/**
 * Find materials using a texture
 */
export declare function getMaterialsUsingTexture(project: Project, textureUuid: string): Material[];
/**
 * Create material from texture
 */
export declare function createMaterialFromTexture(project: Project, texture: Texture | string, name?: string): Material;
/**
 * Assign material to selected faces
 */
export declare function assignMaterialToSelection(project: Project, materialUuid: string, selection?: {
    meshes?: Array<{
        mesh: Mesh;
        faces: string[];
    }>;
    cubes?: Array<{
        cube: Cube;
        faces: Array<'north' | 'south' | 'east' | 'west' | 'up' | 'down'>;
    }>;
}): number;
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