<html> <head> <style></style></head> <body class='hmmessage'><div dir='ltr'>Hello everyone,<br><br>I am an university student working on school project related to OpenGL. <br>Now I am using mesa library (version 9.0.3) as an implementation of OpenGL. <br>I have a few questions about Mesa library.<br> <br>glBegin()/glEnd() pair is used for immediate mode rendering, so I study the source code to find out <br>how these functions work.<br><br>In file "vbo_exec_api.c" line 800, the comment says function vbo_exec_Begin is called via glBegin().<br><br>However, in all library files, I cannot find where and how glBegin() calls the function.<br><br>Could you give some hints and explanations? I am really appreciating your help. Thanks.<br><br>Li Zhi<br> </div></body> </html>