This is a demo of a bitmap font that uses OpenGL and is written in C++. It requires the gd library from boutell.com. There s a demo at http://www.coolgroups.com/font/. -This is a demo of a bitmap font that uses OpenGL and is written in C++. It requ

This a Transparent PNG texture loader for OpenGL. It requires the gd library at boutell.com. There s a demo at http://www.coolgroups.com/alpha/. -This a Transparent PNG texture loader for OpenGL. It requires the gd library at boutell.com. There s

通过等值线的绘制与填充过程分离的编程思想,先用OpenGL硬件加速的光栅化技术实现区域快速填充,然后利用MFC下的GD I绘图功能在相同的区域上绘制等值线。该方法不涉及到复杂的算法,用很简单的代码就能实现与商业软件视觉效果相媲美的等值线填充效果,且适用于离散区域为任意形状的多边形网格系统。