How to import a GLSL file into a GLSL file in ReactJS & ThreeJS

To create a structured GLSL project in ReactJS & ThreeJS, create a GLSL ViteJS enabled project and use the #include statement along with the files path.

Oscar de la Hera Gomez
Written by Oscar de la Hera Gomez
First published on 11/11/2023 at 10:37
Last Updated on 11/16/2023 at 14:45
<p>Three flowers that represent ReactJS, ThreeJS &amp; ViteJS side by side. Beneath them sits the text "Include in GLSL."</p>

To create a structured GLSL project in ReactJS & ThreeJS, create a GLSL ViteJS enabled project and use the #include statement along with the files path.

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We recommend that you clone our Open Source React, Typescript & ViteJS Starter Project, checking out the main branch and carrying out the steps below. The changes can be found on the tutorial/three-js/include branch.

git clone git@github.com:delasign/reactjs-3js-vitejs-starter-project.git
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Step One: Setup the Project

<p>A screenshot of Chrome showing that the plane is now using the shader that we offer in this tutorial.</p>

Follow the tutorial below to learn how to setup a ViteJS project to work with GLSL, ReactJS, Typescript & ThreeJS.

How to create a React, Typescript & ThreeJS GLSL Vite Project

Step Two: Create the shared GLSL file

<p>A screenshot of VSCode showing how we created a BaseLight.glsl file that holds the struct. All the elements of the struct end in a ";" this is important as without it, the file will not load.</p>

Create the shared GLSL functionality in a new file.

We recommend that you place this within a shared folder.

If the functionality is not a function, make sure that it ends in a semi-colon (i.e. ;), otherwise the project will produce errors.

Step Three: Include the GLSL File

<p>A screenshot of VSCode showing how we have included the GLSL file in a separate file using the include statement.</p>

In the file that you wish to import the functionality that you created in Step Two, add the following line at the top:

Please replace ./path/to/file with the path to your file.

#include "./path/to/file";

Step Four: Test

<p>A screenshot of Chrome showing that the plane is now using the shader that we offer in this tutorial.</p>

Run the code and confirm that everything works as expected.

Looking to learn more about ReactJS and ThreeJS ?

Search our blog to find educational content on learning how to use ReactJS and ThreeJS.

Search our BlogReact, ThreeJS & GLSL Resources

Any Questions?

We are actively looking for feedback on how to improve this resource. Please send us a note to inquiries@delasign.com with any thoughts or feedback you may have.
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