What is Three.js?

The Popular JavaScript 3D Library

Three.js is a cross-browser JavaScript library and application programming interface (API) used to create and display animated 3D computer graphics in a web browser using WebGL. It aims to simplify the process of creating complex 3D animations and interactive experiences on the web.

Key Features of Three.js

• Scenes, Cameras, and Renderers: Provides the core components for setting up a 3D environment.
• Geometries and Materials: A wide range of built-in geometries (cubes, spheres, etc.) and materials (basic, standard, physical) to define the shape and appearance of objects.
• Lights: Various light types (ambient, directional, point, spot) to illuminate your scenes realistically.
• Loaders: Supports loading various 3D model formats (GLTF, OBJ, FBX) created in 3D modeling software.
• Post-processing Effects: Allows for advanced visual effects like bloom, depth of field, and anti-aliasing.

Why Use Three.js?

Three.js abstracts away the complexities of raw WebGL, providing a higher-level API that is much easier to work with. This allows developers to focus on creating compelling 3D content rather than getting bogged down in low-level graphics programming. It's widely used for:

• Interactive product configurators
• 3D data visualizations
• Web-based games
• Architectural visualizations
• Educational tools

Case Study: Google Arts & Culture

Google Arts & Culture uses Three.js to power many of its immersive 3D experiences, allowing users to explore historical sites, art installations, and cultural artifacts in a virtual environment. This demonstrates Three.js's capability to handle complex scenes and deliver rich, interactive content directly in the browser.