Author:  DigiBen

This tutorial demonstrates how to render transparent images using a mask image. Also demonstrated is how use Ortho mode, which allows you to render to screen coordinates verses 3D coordinates. If you have ever wanted to know how to keep an image in front of the camera or create a scope for your 3D first person shooter, check this tutorial out.

Functions Used:  glBindTexture(), glTexCoord2f(), gluLookAt(), glRotatef(), glEnable(), glBlendFunc(), glDisable(), GetKeyState(), glMatrixMode(), glPushMatrix(), glOrtho()