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