精通DirectX 3D图形与动画程序设计 第10章　字体与文本显示　230 10.1　二维文本绘制　230 10.2　三维文本绘制　235 ,Proficient in DirectX 3D graphics and animation programming Chapter 10 fonts and text display text 230 10.1 Two-dimensional mapping of three-dimensional text 230 10.2 Drawing