OSG.JS
OSG.JS is a WebGL framework based on OpenSceneGraph concepts. It allows an individual to use an “OpenSceneGraph-like” toolbox to interact with WebGL via JavaScript, and provides facilities for exporting various assets to the osgjs format. The API is kept as similar to OpenSceneGraph as possible, providing a familiar environment to veterans of the library and introducing newcomers to a popular and heavily-scrutinzed set of interfaces. OSG.JS was developed and is maintained by Cédric Pinson, and accessible on GitHub.