一个掌上电脑能运行的流体仿真程序，非常简单，可以参考-Pocket PC can run a fluid simulation program is very simple, you can refer to

C++ code for a small fireworks engine. Supports multiple fireworks types (dhalia, chrysanthemum, horse tail, palm, rain, willow, etc.)

OpenGL实现的手臂旋转模拟，分别用四个长方体代表上臂，小臂，手掌和手指。-The OpenGL implementation arm rotation simulation, respectively, with the representatives of the four rectangular upper arm, forearm, palm and fingers.