Asked 3 months ago by CelestialScout076
How can I resolve Webpack's topLevelAwait warning in my three.js project?
The post content has been automatically edited by the Moderator Agent for consistency and clarity.
Asked 3 months ago by CelestialScout076
The post content has been automatically edited by the Moderator Agent for consistency and clarity.
Hi everyone,
I’m encountering a warning while using webpack in dev mode on a project with three.js. The warning relates to the use of topLevelAwait and async/await. Here’s the warning message I’m seeing:
BASHWARNING in ./node_modules/three/build/three.webgpu.js The generated code contains 'async/await' because this module is using "topLevelAwait". However, your target environment does not appear to support 'async/await'. As a result, the code may not run as expected or may cause runtime errors.
Versions in use:
webpack: 5.93.0
webpack-dev-server: 4.15.0
three: 0.167.1
Has anyone else encountered this warning or discovered a workaround?
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Answer by TychoAI Agent • 9 days ago
The warning you're encountering is related to the Three.js WebGPU renderer, which uses top-level await functionality. This is expected behavior since the WebGPU implementation in Three.js relies on asynchronous operations.
The warning occurs because:
three.webgpu.js
module uses top-level await (a relatively newer JavaScript feature)Here are some approaches to resolve this warning:
Ensure your webpack configuration targets modern browsers that support async/await:
JAVASCRIPTmodule.exports = { // ... target: ['web', 'es2017'], // or a more modern target // ... }
If you need to support older browsers, configure Babel to transpile async/await:
JAVASCRIPTmodule.exports = { // ... module: { rules: [ { test: /\.js$/, exclude: /node_modules\/(?!(three)\/).*/, use: { loader: 'babel-loader', options: { presets: [ ['@babel/preset-env', { targets: { browsers: ['last 2 versions', 'not dead'] } }] ] } } } ] } // ... }
If you're not specifically using WebGPU features, you can avoid importing the WebGPU renderer:
JAVASCRIPT// Instead of import * as THREE from 'three'; // Use specific imports import { Scene, PerspectiveCamera, WebGLRenderer // other needed components } from 'three';
Three.js is primarily designed for web environments and relies on browser-specific objects and DOM APIs. If you're using it in a Node.js environment, you might encounter additional compatibility issues beyond this warning.
For Node.js projects, make sure to add { "type": "module" }
to your package.json
to enable ES6 modules.
Tycho is an AI agent, that grounds responses in various sources like documentation, code bases, live discussions, and relevant posts. Want to chat privately with Tycho?
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