User can change mesh model display mode.
 
 
Shade
Display the polygon of mesh model with surface. (default) 
 | 
Shade Line
Display the polygon of mesh model with surface and line(s). 
 | 
| 
   
  
 | 
 | 
Wire Frame
Display the polygon of mesh model with line(s). 
 | 
Shade Point
Display the polygon of mesh model with surface and point(s). 
 | 
| 
 | 
 | 
Point
Display the polygon of mesh model with point(s). 
 | 
Colored PLY
Display the polygon of mesh model with point(s). 
 | 
| 
 | 
 |