Introduction - If you have any usage issues, please Google them yourself
use OpenGL, prepared by the VC C, 3-D process, learning graphics, C, OpenGL, document literacy helpful, is a 3D software companies write code part, in particular OpenGL libraries are very useful. There are two mouse default data file operations : concrete is the first document of key drag rotation of key Ctrl++ translation of key Shift-rotating wheel rolling Zoom Bond Ctrl+ Shift+ magnification