Three.js is a cross-browser JavaScript library and application programming interface that uses WebGL to create and display animated 3D computer graphics in a web browser.

Three.js is a cross-browser JavaScript library and application programming interface that uses WebGL to create and display animated 3D computer graphics in a web browser.

A special render target enables a fragment shader to write to several textures. This approach is useful for advanced rendering techniques like post-processing or deferred rendering.

The Renderer displays the scene onto an HTML Canvas Element. By default it uses WebGL. WebGL allows GPU-accelerated image processing and effects as the renderer creates the 2D image for the Canvas.

Three.js encodes 3D transformations using matrices for translations (position), rotations, and scaling.

Three.js materials define 3D objects, including color, texture, and how they interact with light. Examples include MeshBasicMaterial (unaffected by light), MeshLambertMaterial, MeshPhongMaterial (shiny), and MeshStandardMaterial (realistic lighting).