Thanks for your reply.
I downloaded the program which is there in NeHe’s lesson 23(Game Glut code), but i am getting an error as below :
user@lxdevenv:~/Temp/sample/lesson23/lesson23$ g++ lesson23.cpp -o lesson23 -I/usr/x11R6/include/ -L/usr/lib -lX11 -lXmu -lglut -lGL -lGLU
lesson23.cpp:55: error: expected constructor, destructor, or type conversion before ‘*’ token.
What exactly it means ?
and is it necessary to learn Adobe’s Photoshop program to create Sphere in lesson-23, because i think, in this lesson they use photoshop program.
please Help me Sir. waiting for your reply.