VERTEX_POSITIONS defines eight vertices in the same order, as shown in Figure 1a.

VERTEX _ POSITIONS以同样的顺序定义了与图1a相同的8个顶点。

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Note that the actual number of vertices that graphics hardware has to process is usually not the same as displayed in a 3D application.

注意，图形硬件处理在的实际的顶点数，3D程序中显示的通常是不一样的。

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Note that the actual number of vertices that graphics hardware has to process is usually not the same as what is displayed in a 3d application.

请注意，图形硬件处理顶点的实际数量通常和3d应用程序显示的不一样。

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