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. Author manuscript; available in PMC: 2009 Sep 22.
Published in final edited form as: IEEE Trans Vis Comput Graph. 2009 Sep–Oct;15(5):747–758. doi: 10.1109/TVCG.2009.31

Fig. 7.

Fig. 7

Normal shaded rendering is depicted in (a). (b) shows the results when the smoothed normals are used for both the diffuse and specular parts of the lighting calculation. We use the smoothed normals only for the specular calculation, as shown in (c). This retains details lost in (b) while maintaining a glossy appearance. This gives the visual effect of an object coated with a thin fluid. An unshaded rendering (d) is provided for reference. See Fig. 8 for a close-up comparison of methods (b) and (c). (a) Unsmoothed normals; (b) Smoothed normals; (c) Smoothed specular only; (d) Unshaded.