   Understanding code...
  Hello.I''m currently trying to work my way throu the NeHe tutorials and after spending hours to find the one mistake I made on tutorial 19 I realized that I don''t understand what certian functions do.My error was that the following line was missing in the InitGL function:glEnable(GL_BLEND);If you have the tutorial, and try to remove/comment out that line you will see that the result is completly different. So, have I missed the tutorial that explain this line, or is there any good resources on the internet that can help me?Thanks all.Endre  
  Been a while since i used OpenGL, but if i remember it correctly, that line enables Alpha blending (transparency).Which i could help you out more, but like i said, have'nt used it for a while.PS:NeHe teaches Alpha blending in lesson 08. Hope this helps. Good luck![edited by - JackRabbit on January 2, 2003 8:42:10 AM]