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【原创】OpenglES画图元基础知识

2010-01-26 10:06 211 查看
Primitive FlagDescription
GL_POINTSA point is placed at each vertex.
GL_LINESA line is drawn for every pair of vertices that are given.
GL_LINE_STRIPA continuous set of lines are drawn. After the first vertex, a line is drawn between every successive vertex and the vertex before it.
GL_LINE_LOOPThis is the same as GL_LINE_STRIP except that the start and end vertices are connected as well.
GL_TRIANGLESFor every triplet of vertices, a triangle is drawn with corners specified by the coordinates of the vertices.
GL_TRIANGLE_STRIPAfter the first 2 vertices, every successive vertex uses the previous 2 vertices to draw a triangle.
GL_TRIANGLE_FANAfter the first 2 vertices, every successive vertex uses the previous vertex and the first vertex to draw a triangle. This is used to draw cone-like shapes.

在Zeus上看到的一个关于OpenglES画图元的基础知识，记录一下。
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