水面实时渲染，使用FFT和Wave方程来生成水面波动，要求显卡必须支持SM3.0和VTF（Geforce6以上） 使用2005.8的DXSDK编译-Surface real-time rendering, the use of FFT and the Wave Equation to generate the surface fluctuations, requirement SM3.0 graphics card must support and VTF (Geforce6 above)