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Shading method in graphics display system

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专利汇可以提供Shading method in graphics display system专利检索,专利查询,专利分析的服务。并且PURPOSE: To obtain the realism of a Phong shading, holding the calculation characteristic of a Gouraud shading, by adjusting the size of a polygon for incident light vector and surface normal line vector.
CONSTITUTION: An object 2 is irradiated with parallel incident light vector I. The analysis in which plural non-parallel light sources are used increases only the numbers of times of calculation and evaluation. The object 2 is regarded as a three-dimensional non-planar object having the surface normal lines SN 1, SN 2 and SN 3 at three vertexes of a triangle 1. The scanning line 4 of a video display 3 crosses the triangle 1. In the strength characteristic of the pixel along the scanning line 4 between the boundary pixels 6 and 7 of the triangle, further, a linear interpolation in which previously guided values are used for surrounding pixels 6 and 7 accompanies. The interpolation can be calculated at higher speed as compared with the case where the reflection light characteristic for each pixel is determined.
COPYRIGHT: (C)1992,JPO,下面是Shading method in graphics display system专利的具体信息内容。

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