WebGL is OpenGL 3D graphics for web pages. It extends the capability of the HTML canvas element to allow it to render accelerated 3D graphics in any compatible web browser.
WebGL is based on OpenGL ES and is driven via a JavaScript API. It does not require the use of plug-ins. Official specifications and additional information can be found at Khronos.
Engines:
There are also many different webGL based 3D engines available:
- Three.js - the most popular and the most used
- Goo Engine
- SceneJS
- BabylonJS
- GLGE
- PhiloGL
- CopperLicht
- KickJS
- A3
- CubicVR
- C3DL
- Kuda
- O3D
- SpiderGL
Getting started with webGL:
The head-first place for all new webGL developers - LearningWebGL. LearningWebGL has basic tutorials required to understand the API and pipeline, and is also a blog site that publishes newest information about webGL every week.
Website with plenty of Three.js tutorials and examples - LearningThreeJS.