G3dOGL.exe -?

Specifically:

1. left mouse: rotation 
   right mouse: scaling 
   middle mouse: translation 

2. D + e: visualize the triangulation 
   D + s: show frame
   D + r: change all face normal, so that inside surface 
   rendered with green becomes outside

3. ii: (hide text)

4. E: eneter edit status
   In edit mode, put arrow on the target edge or face or vertex and do the following:

   t: sharp edge	
   s: edge split
   w: edge swap
   f: remove one face
   v: remove one vertex

   @@: save changes to the mesh file

5. r: updating 

6. g3dogl.exe **_uv.m -texturemap check.bmp
   D + t, visualize the texture mapping.