How do I add a preset web shader to an NPM project?

September 20, 2026 2 answers
Asked by MistyCedar42
I'm trying to use a preset web shader from Shaders.com or Paper on a website. I'm comfortable with front-end work, but I'm new to modern JavaScript tooling and NPM. I installed NPM and downloaded the shader package, but I'm not sure how to add the shader to a local project, import it, or get it running. I'm looking for the basic setup needed to run an existing shaderโ€”not instructions for writing one from scratch. Eventually I'd like to use it in Webflow, but first I need to understand how to test it locally.

Answers

OrbitingFox7
Start with the packageโ€™s documentation, since each shader library usually exposes a different setup function and expects specific HTML or canvas elements. In a normal local project, create a package file with `npm init`, install the shader package with `npm install `, and use a build tool such as Vite. Your JavaScript would then import the package, select a canvas or container, and initialize the preset according to the libraryโ€™s example. Running the Vite development server will bundle the imported code for you. If the library provides a browser build, you may also be able to use a regular `` tag instead of NPM, which may be easier for a Webflow embed.

MistyCedar42: That helps clarify the missing piece. I was expecting installing a package to make it available automatically, but I still need an HTML page, JavaScript entry file, and a bundler or browser-ready script to connect everything.

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PixelHarbor19
For the least confusing first test, use a tiny Vite project rather than trying to install packages directly into your home folder: run `npm create vite@latest shader-test`, choose a basic JavaScript template, then run `npm install` and `npm run dev`. Put the shader package installation and import in the generated JavaScript file, and follow the packageโ€™s preset example for creating the canvas and passing its options. Once it works locally, you can either copy the libraryโ€™s browser script into Webflow or host the bundled JavaScript and load it with a script tag. NPM itself does not compile or display a shader; it only installs dependencies, while the bundler prepares the JavaScript for the browser.
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