import { Color, Matrix4, ShaderMaterial, Vector3, BufferGeometry, Texture, WebGLRenderer, Scene, Camera, Side } from 'three';
import { IUniformColor, IUniformN, IUniformTexture, IUniformV3 } from '../../../engine/nodes/utils/code/gl/Uniforms';
import { BaseReflector, BaseReflectorOptions } from './_BaseReflector';
import { PolyScene } from '../../../engine/scene/PolyScene';
/**
 * Work based on :
 * http://slayvin.net : Flat mirror for three.js
 * http://www.adelphi.edu/~stemkoski : An implementation of water shader based on the flat mirror
 * http://29a.ch/ && http://29a.ch/slides/2012/webglwater/ : Water shader explanations in WebGL
 */
export interface WaterMaterial extends ShaderMaterial {
    uniforms: {
        sunDirection: IUniformV3;
        sunColor: IUniformColor;
        wavesHeight: IUniformN;
        waterColor: IUniformColor;
        reflectionColor: IUniformColor;
        reflectionFresnel: IUniformN;
        distortionScale: IUniformN;
        size: IUniformN;
        alpha: IUniformN;
        time: IUniformN;
        timeScale: IUniformN;
        direction: IUniformV3;
        normalBias: IUniformN;
        mirrorSampler: IUniformTexture;
        textureMatrix: {
            value: Matrix4;
        };
        eye: IUniformV3;
    };
}
export interface WaterOptions extends BaseReflectorOptions {
    polyScene: PolyScene;
    alpha?: number;
    timeScale?: number;
    size?: number;
    direction?: Vector3;
    sunDirection?: Vector3;
    sunColor?: Color;
    wavesHeight?: number;
    waterColor?: Color;
    reflectionColor?: Color;
    reflectionFresnel?: number;
    waterNormals?: Texture;
    distortionScale?: number;
    normalBias?: number;
    side?: Side;
    useFog?: boolean;
}
export declare class Water extends BaseReflector<BufferGeometry, WaterMaterial> {
    protected _options: WaterOptions;
    readonly isWater = true;
    protected _mirrorCameraMultipliedByMatrixWorld: boolean;
    constructor(geometry: BufferGeometry, _options: WaterOptions);
    protected _createMaterial(): WaterMaterial;
    protected _assignMaterialRenderTarget(): void;
    protected _onBeforeRender(renderer: WebGLRenderer, scene: Scene, anyCamera: Camera): void;
    setReflectionActive(state: boolean): void;
}