OPENGL based on the VC++ source code generated snow, not too complicated, you can learn about the snowflake shape generation algorithm, you can use X and F keys to control the clear screen and stop, OPENGL relatively simple example, you should refer to beginners OPENGL

snow\Desktop_.ini
....\ReadMe.txt
....\snow.cpp
....\snow.dsp
....\snow.dsw
....\snow.ncb
....\snow.opt
....\snow.plg
....\StdAfx.cpp
....\StdAfx.h
....\Debug\Desktop_.ini
....\.....\snow.exe
....\.....\snow.ilk
....\.....\snow.obj
....\.....\snow.pch
....\.....\snow.pdb
....\.....\StdAfx.obj
....\.....\vc60.idb
....\.....\vc60.pdb
....\Debug
snow

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