npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2025 – Pkg Stats / Ryan Hefner

quad-shader

v0.0.6

Published

Zero-deps library for creating WebGL-based applications using Vite and TypeScript

Readme

Quad Shader

This is a JavaScript library to build shader-based, 2D animations. You provide a GLSL shader to the animate() function which renders it to a quad.

Whether you're just getting started with WebGL or looking for a quick way to bootstrap your shader projects, this library should serve as a solid foundation.

For a longer introduction, see the official webpage.

Getting started

First create a new project. The recommended way is to use Vite

npm create vite@latest my-quad-shader-app

Then install the quad-shader library:

npm install quad-shader

Then add an <canvas> element to the index.html generated by Vite. Edit the CSS to set a fixed size for the canvas:

canvas {
    width: 100%;
}

Finally add a <script type="module">...</script> element with the following content:

import { animate, getComputedStylePropRGBA } from "quad-shader";
const qs = animate(document.querySelector("canvas"), `
  precision lowp float;
  varying vec2 vPosition;
  uniform vec4 uColor;
  uniform float uTime;
  void main() {
      float theta = atan(vPosition.y, vPosition.x);
      float rho = length(vPosition.xy);
      float v = mod(rho - uTime/10., .2);
      float alpha = smoothstep(.1, .2, v);
      alpha *= (1. - smoothstep(0., 1., rho));
      gl_FragColor = alpha * uColor;
  }
`);
qs.uniform4f("uColor", () => getComputedStylePropRGBA(qs.canvas, "color"));

To start the development server with hot-reloading:

npm run dev

Your project should now be running at http://localhost:5173. Open the URL in your browser to see the template in action. Any changes you make to the shaders or TypeScript files will automatically reload the page.

The <canvas> is now rendering an animation. For more information, see https://nmattia.github.io/quad-shader/.

License

This project is licensed under the MIT License. You are free to use, modify, and distribute this template in your own projects.

If you have any questions or need further assistance, feel free to reach out via the issues tab on GitHub.