OpenGL编程轻松入门之像素操作

本节讲解像素操作。本例在窗口绘制一个三角形，然后利用glCopyPixel函数拷贝了五次该图形，并将这五个三角形放置在窗口的不同位置。-OpenGL Programming operating easy entry of the pixels on the pixel operation of this section. In this case a triangle drawn in the window, and then use the copy function glCopyPixel five times the graphics, and the five triangles placed in the window at different positions.