Tips for correctly importing modules into a threejs project

I've been trying to include modules in order to utilize the bloom effect, however, I keep encountering this error message. The .js files were copied from three/examples/js/, so they are current.

index.html:

<script src="../module/three.js"></script>
<script src="../module/EffectComposer.js"></script>
<script src="../module/CopyShader.js"></script>
<script src="../module/ShaderPass.js"></script>
<script src="../module/RenderPass.js"></script>
<script src="../module/UnrealBloomPass.js"></script>
<script src="../module/MaskPass.js"></script>
<script src="../module/Pass.js"></script>
<script src="../module/LuminosityHighPassShader.js"></script>
<script type="module" src="index.js"></script>

index.js:

import * as THREE from "../module/three.module.js";

...
//bloom renderer
const renderScene = new THREE.RenderPass(scene, camera);

This leads to the following error: Uncaught TypeError: THREE.RenderPass is not a constructor

What is the correct approach to resolve this issue?

Answer №1

You have inadvertently imported the three.js library twice in your project. It is being loaded once through a script tag and then again through an ES6 import statement. This practice is incorrect and should be avoided.

By importing THREE using the ES6 syntax, you are redefining its namespace and overriding the previous module imported via the script tag. To resolve this issue, please remove the following line from your code:

import * as THREE from "../module/three.module.js";

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