Anton’s OpenGL 4 Tutorials is a highly regarded practical guide for 3D graphics programming, focusing exclusively on the modern programmable pipeline (OpenGL 3.3 and 4.x). While there is no official "exclusive" PDF file marketed under that specific phrase, the book is widely available in ePub and MOBI formats and as an eBook on Key Features and Content
Introduction
The Basics: Getting a "Hello Triangle" running, understanding Shaders, and working with Vertex Buffer Objects (VBOs). antons opengl 4 tutorials books pdf file exclusive