Key Concepts
Three.js abstracts the low-level details of 3D rendering, allowing developers to focus on the creative aspects. Core components of any Three.js project include:
Scene: A container that holds all objects, lights, and cameras, essentially defining the 3D world.
Camera: Determines the viewpoint from which the scene is rendered (e.g., perspective or orthographic).
Renderer: The component that takes the scene and camera and outputs the final visual result to an HTML
Objects/Meshes: Combinations of Geometry (the shape, like a cube or sphere) and Material (the visual properties, like color and texture).
Lights: Various types of lights (ambient, directional, point, etc.) that affect how objects appear in the scene.
Features
Three.js is feature-rich, providing tools for:
Animation, including keyframes and morph targets.
A variety of geometries (plane, cube, sphere, 3D text) and materials (Lambert, Phong, physically based rendering).
Importing/exporting 3D models in formats like glTF and OBJ.
Support for Virtual Reality (VR) and Augmented Reality (AR) via WebXR.
Advanced effects and an extensive post-processing library.