To create a simple wallhack-like effect in an OpenGL application:
The CS 1.6 OpenGL wallhack is a relic of a different era of gaming. While it represents a fascinating look at how early graphics APIs could be manipulated, it also serves as a reminder of the constant battle between developers and cheaters. If you’re looking to improve at CS 1.6 today, your best bet is practicing your aim and learning map rotations—the "old school" way.
// Draw model model.draw();