render up
5.And then picking up 3-D graphic units is implemented by utilizing OpenGL function library and Microsoft DirectX 9.0.Experiments have proved that coordinate change among various coordinates can be easily implemented by OpenGL and Microsoft DirectX 9.0.Ray pick-up is valid in increasing programming efficiency,operation speed,render efficiency and pick-up accuracy.
10.The rendering process is mostly implemented on Graphic Processing Unit(GPU),meeting the real-time requirements of the algorithm:on up-to-date personal computers and programmable graphics hardware we can render the water surface at 30fps above.


