Light nodes make the appearance of geometry visible and viewable in a scene.
Lights illuminate geometry in a scene relative to the user's view.
Lighting nodes include
and the active
headlight (which points along the user's viewing direction).
Environmental effects include
Each set of light nodes, NavigationInfo nodes, background nodes and fog nodes are bound on a separate binding stack,
meaning that only one of each can be active at a time.
Chapter 11 slideset
and course videos
for X3D for Web Authors are available online via