kFlat: The shading of the pixels between the shaded pixels is copied from the previous pixels. If shading resolution is 10, the first pixel is shaded, the next nine are copied from the first pixel, the tenth pixel is shaded, the next nine are copied from the tenth pixel, and so on.
kColorSmooth: The shading of the pixels between the shaded pixels is linearly interpolated (smoothed). If shading resolution is 10, the first and tenth pixels are shaded. Pixels 2 through 9 are smoothed according to the shading in pixels 1 and 10.
Figure 204
shows the TGrafBundle3D functions for shading interpolation.
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