How Can I Change the Background Color in Three.js?

Customizing the Three.js Background Color

If you've encountered issues setting a transparent or colored background in Three.js, the black default can be frustrating. To rectify this, delve into the following solutions:

Solution

The root of the issue stems from JavaScript and can be addressed by modifying the renderer's clear color value.

For example, code within a Three.js initialization function like:

renderer.setClearColorHex(0x000000, 1);

Should be adjusted to:

renderer.setClearColorHex(0xffffff, 1);

Or, for an updated solution:

renderer.setClearColor(0xffffff, 0);

To allow for transparency, utilize the following code when creating a WebGLRenderer instance:

var renderer = new THREE.WebGLRenderer({ alpha: true});

Additionally, from r78 onwards, background colors can be set using:

var scene = new THREE.Scene(); // initializing the scene
scene.background = new THREE.Color(0xff0000);

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