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Polygons are used in computer graphics to compose images that are three-dimensional in appearance. Usually (but not always) triangular, polygons arise when an object's surface is modeled, vertices are selected, and the object is rendered in a wire frame model. This is quicker to display than a shaded model; thus the polygons are a stage in computer animation. The ''polygon count'' refers to the number of polygons being rendered per frame. ==Competing methods for rendering polygons that avoid seams== * Point * *Floating Point * *Fixed-Point * *Polygon * *because of rounding, every scanline has its own direction in space and may show its front or back side to the viewer. *Fraction (mathematics) * *Bresenham's line algorithm * *Polygons have to be split into triangles * *The whole triangle shows the same side to the viewer * *The point numbers from the Transform and lighting stage have to converted to Fraction (mathematics) *Barycentric coordinates (mathematics) * *Used in raytracing 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Polygon (computer graphics)」の詳細全文を読む スポンサード リンク
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