Basic HTML version of Foils prepared April 6 1997

Foil 129 Lights - I

From VRML 2 Basic Concepts and Definitions CPS616 -- Information Track of CPS -- Spring Semester 97. by Zeynep Ozdemir(Geoffrey C. Fox)
1 Lights in a VRML world serve the same purpose as lights in real world. VRML provides three node types to control lighting: PointLight, DirectionalLight, and SpotLight.
2 A light can be placed anywhere in the VRML world but a viewer cannot see any kind of geometrical indication related to that light. A viewer can of course see the effect of that light in the VRML world.
3 Note lights only affect a Shape which has a non NULL Appearance node and a non NULL Material node within Appearance node
4 ambientIntensity reflects general affect of reflections as an approximation to exact rendering
in Table To:

Northeast Parallel Architectures Center, Syracuse University, npac@npac.syr.edu

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