# WaterRefractionShader ## Import WaterRefractionShader is an addon, and must be imported explicitly, see [Installation#Addons](https://threejs.org/manual/#en/installation). ```js import { WaterRefractionShader } from 'three/addons/shaders/WaterRefractionShader.js'; ``` ## Properties ### .WaterRefractionShader : ShaderMaterial~Shader (inner, constant) Basic water refraction shader. ## Source [examples/jsm/shaders/WaterRefractionShader.js](https://github.com/mrdoob/three.js/blob/master/examples/jsm/shaders/WaterRefractionShader.js)