| 摘要 |
Method and apparatus for implementing cell-animation-looking colors as an example of non-photo-realistic rendering in three-dimensional model plot processing. Perspective transformations and light source calculations are carried out for a polygon of the three-dimensional model. Then, the luminosity of each apex of the polygon is calculated. In addition, the color for plotting the polygon is calculated for each of the luminosity ranges defined in advance. Alternatively, the colors for plotting may be calculated and stored in advance. Then, one of the luminosity range is selected from the luminosity ranges defined in advance. If the luminosity range of each pixel inside the polygon lies within the luminosity range selected, the pixel is plotted in the color for plotting corresponding to the luminosity range selected. By repeatedly performing these operations, a cell-animation-looking image is generated.
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