import Material, { MaterialOpts } from './Material';
import { createStandardShader } from './shader/create';
import { Color } from './core/type';
import Texture2D from './Texture2D';
import type TextureCube from './TextureCube';
import type BoundingBox from './math/BoundingBox';
import { UV_PROJECTION_NONE, UV_PROJECTION_SPHERICAL, UV_PROJECTION_TRIPLANAR } from './shader/source/uvprojection.glsl';
declare let standardShader: ReturnType<typeof createStandardShader>;
type MaterialColor = Color | string;
export interface StandardMaterialOpts extends Omit<MaterialOpts, 'shader'> {
    color: MaterialColor;
    emission: MaterialColor;
    emissionIntensity: number;
    roughness: number;
    metalness: number;
    alpha: number;
    alphaTest: boolean;
    alphaCutoff: number;
    /**
     * Scalar multiplier applied to each normal vector of normal texture.
     *
     * This value is considered only if a normal texture is specified.
     */
    normalScale: number;
    doubleSided: boolean;
    diffuseMap?: Texture2D;
    normalMap?: Texture2D;
    roughnessMap?: Texture2D;
    metalnessMap?: Texture2D;
    emissiveMap?: Texture2D;
    environmentMap?: TextureCube;
    environmentBox?: BoundingBox;
    /**
     * BRDF Lookup is generated by clay.util.cubemap.integrateBrdf
     */
    brdfLookup?: Texture2D;
    ssaoMap?: Texture2D;
    aoMap?: Texture2D;
    occlusionMap?: Texture2D;
    uvProjection: typeof UV_PROJECTION_NONE | typeof UV_PROJECTION_TRIPLANAR | typeof UV_PROJECTION_SPHERICAL;
    uvRepeat: [number, number];
    uvOffset: [number, number];
    aoIntensity: number;
    environmentMapPrefiltered: boolean;
    linear: boolean;
    encodeRGBM: boolean;
    decodeRGBM: boolean;
    roughnessChannel: number;
    metalnessChannel: number;
}
interface StandardMaterial extends StandardMaterialOpts {
}
/**
 * Standard material without custom shader.
 * @example
 * const mat = new clay.StandardMaterial({
 *     color: [1, 1, 1],
 *     diffuseMap: diffuseTexture
 * });
 * mat.roughness = 1;
 */
declare class StandardMaterial extends Material<typeof standardShader> {
    constructor(opts?: Partial<StandardMaterialOpts>);
    clone(): StandardMaterial;
}
export default StandardMaterial;