I have a question about saving the scene as obj file. In the traditional Chimera, I was able to generate obj file with texture by simply clicking 'save' button. I tried to save obj file simply by typing save ~/Desktop/file.obj . I generated obj file but it does not show texture - basically black &white. I was hoping to find some more information on the user guide but I did not find much. 

Could somebody please help me with this problem? 

Thank you, 

Raphael