| OCR Text |
Show 12 Newell's light Warnock's methods is severely limited due to or intensity technique improves in explained the chess board and I. 2 the Over a this surface ability, following it of apparent rendered with approximate itself. has 1.6 shows Gour aud annoying certain However, discontinuity across of they depend upon a realistic highlights transparent on cup as the shading. smooth shading polygon the of shading a disposition and shape curvature surface in motion in the surface, The often are frame to frame discontinuities due to the describing a of the the of the technique, large variety of which of one Highlights edges. specular reflection the of problems still exist, curved surface and not upon the a Finally, polygons render the Newell model of the high component a, since shaped, Figure vary Although the Gour aud computer-generated images allows representation objects with great realism. is -the not to inability Existing Methods. With the introduction of quality single polygon. still' does section. glass bottle using Problems with of any the surfaces on inappropriately polygons used, to surface object computer generated film a changing orientation of shading algorithms are the under' not invariant rotations. The' problem detail in the next Figure 1.7 shows polygons pictures, a of discontinuities about section cylinder respectively, to the discontinuities Visual approximated Perception and by three, illustrate this phenomenon. are less but they do not disappear completely. will polygon edges across apparent with a studied be the Mach Band effect. four, eight, and As demonstrated larger in number of twelve by these polygons, |
