Introduction - If you have any usage issues, please Google them yourself
Reads a model under the window functions the following features: use: window operation: the icon in the upper-right corner of the window and menu bar have prompted maximize the window, Minimize and Close functions same time can use the ESC key on the keyboard The window is closed. Model operations: model mobile: up and down and move around, up and down keys, the keys can be achieved with a the oblique diagonal of mobile zoom: PgUp-zoom PgDn-narrowing mouse hold down the left button moving enlarge hold down the right moves achieve narrow lighting effects: the key L transparent effect: Key B