lab11

lab11-GeometryPositionNormal

ShadedGeometry-PerVertexLighting

lab11-GeometryPositionNormalPerVertexLighting
http://en.wikibooks.org/wiki/GLSL_Programming/GLUT/Diffuse_Reflection
http://en.wikibooks.org/wiki/GLSL_Programming/GLUT/Specular_Highlights

ShadedGeometry-PerPixelLighting

lab11-GeometryPositionNormalPerPixelLighting
http://en.wikibooks.org/wiki/GLSL_Programming/GLUT/Smooth_Specular_Highlights