@article{Phong:1975:ICG,
  citeseer = {http://citeseer.ist.psu.edu/context/108062/0},
  number = {6},
  volume = {18},
  author = {Bui-Tuong Phong},
  optstatus = {url},
  title = {{I}llumination for {C}omputer {G}enerated {P}ictures},
  abstract = {The quality of computer generated images of three-dimensional
              scenes depends on the shading technique used to paint the objects
              on the cathode-ray tube screen. The shading algorithm itself
              depends in part on the method for modeling the object, which also
              determines the hidden surface algorithm. The various methods of
              object modeling, shading, and hidden surface removal are thus
              strongly interconnected. Several shading techniques corresponding
              to different methods of object modeling and the related hidden
              surface algorithms are presented here. Human visual perception and
              the fundamental laws of optics are considered in the development
              of a shading rule that provides better quality and increased
              realism in generated images.},
  localfile = {papers/Phong.1975.ICG.pdf},
  optkeywords = {GRAPHICS SHADING SPECULAR},
  doi = {http://doi.acm.org/10.1145/360825.360839},
  year = {1975},
  journal = j-CACM,
  pages = {311--317},
}