Introduction - If you have any usage issues, please Google them yourself
Principle of the use of fractal snowflakes with OpenGL painting is one-third of a line segment, the separation of the two original segments of the 1/3 of the segment, and into a short period and 60 degrees (in a plane), and then the new separation of the two segments and one-third of the original segment to repeat the above operation, after about 4 layers, like a snowflake has :-).