OpenGL tutorials

OpenGL tutorials. very good tutorials. it works well.

OpenGL - OOP programming

1. Object Oriented Programming and OpenGL

I want to use OpenGL as graphics of my project. But I really want to do it in a good style. How can I declare a member function "draw()" for each class to call it within OpenGL display function?

Red Book- OpenGL

2. Chapter 7 Display Lists

Chapter Objectives After reading this chapter, you'll be able to do the following:

• Understand how display lists can be used along with commands in immediate mode to organize your data and improve performance
• Maximize performance by knowing how and when to use display lists
A display list is a group of OpenGL commands that have been stored for later execution. When a display list is invoked, the commands in it are executed in the order in which they were issued. Most OpenGL commands can be either stored in a display list or issued in immediate mode, which causes them to be executed immediately. You can freely mix immediate-mode programming and display lists within a single program. The programming examples you've seen so far have used immediate mode. This chapter discusses what display lists are and how best to use them. It has the following major sections:.
3. OpenGL Programming Guide- The Official Guide to Learning OpenGL, Version 1.1

The Official Guide to Learning OpenGL, Version 1.1.

4. Chapter 7 Display Lists

red book. chaptter 7

5. CS405 Lab 6: Display Lists and Basic Buffers

Highlights of this lab: This lab is an introduction to Display Lists and Animation

• Creating, Recording and Executing a Display List
• Hierarchical Display Lists
• Overview of Double Buffering and the Depth Buffer.
6. Display Lists - NEHE

In this tutorial I'll teach you how to use Display Lists. Not only do display lists speed up your code, they also cut down on the number of lines of code you need to write when creating a simple GL scene.

7. OpenGL good examples from Songcha

This page contains fundamental OpenGL tutorials and notes. All example programs are written by C++ with Code::Blocks IDE, as well as makefiles for Linux and Mac. I mostly use GLUT/FreeGLUT, and each example project includes FreeGLUT header and library files in it for MinGW environment..

it contains great examples to play around..

these projects are in code::blocks. it can be converted to Visual Studio solution using cbp2make tool.

8. Object Oriented Programming and OpenGL

I want to use OpenGL as graphics of my project. But I really want to do it in a good style. How can I declare a member function "draw()" for each class to call it within OpenGL display function?.

use OpenGL render class...

9. cbp2make

Makefile generation tool for Code::Blocks IDE.

10. Display List benchmarking

Display lists are used to optimize performance of rendering (ie rendering faster). They are mostly used for rendering larges objects, which requieres a large number of glVertex calls. Keep in mind the call glVertex is SLOW.

Display list is not the only technique to improve rendering speed. There are other rendering techniques such as vertex array, vertex buffer object (known as VBO) and frame buffer object (know as FBO). For what I've experienced for large objects, VBO is faster than display list which is slightly faster or equivalent to vertex array. FBO is know to be faster than VBO, I don't have tried it yet.

I've made few comparisons between display lists and classic rendering (glVertex), to view the speed-up obtained with display list. During these comparisons, we will show that display lists are a lot faster than glVertex for large objects. The results are comparable for tiny objects.

Survey- OpenGL

11. OpenGL Overview
API hierarchy

OpenGL applications use the window system’s window, input, and event mechanism GLU supports quadrics, NURBS, complex polygons, matrix utilities, and more.

12. Configure Project out file names

This is summary of my research.

Tutorial List

13. Clockworkcoders Tutorials Index

Introduction to the OpenGL Shading Language

1. Using OpenGL Extensions (part 1, part 2)
2. OpenGL Shading Language (GLSL) overview
3. Loading, Compiling, Linking, and Using GLSL programs
4. Uniform Variables
5. Vertex Attributes
6. Varying Variables
7. Texturing
8. Per Fragment Lighting
9. Discarding Fragments: "Color Key"
14. OpenGL Extensions Tutorial
My Note

downloaded the tutorial file and unzip it. compiled the project and played around with it.

it has set up additional include directories already: Configuration Properties->C/C++-> General -> Additional Include Directories-> add these paths: freeglut\include ; glew\include; cwc\include; %(AdditionalIncludeDirectories)

so the current directory is $(ProjectDir). in the header file, we can use GL\glew.h directly without using absolute paths.

Introduction

OpenGL Extensions are usually made available to access new features of 3D graphics hardware. Hardware vendors define new functions and/or tokens that enhance the existing features of OpenGL.

Extensions created by a single vendor are called "vendor-specific" and extensions created by several vendors are called "multivendor" extensions.

If a vendor-specific or multivendor extension proves to be a good enhancement, the OpenGL Architecture Review Board (ARB) may promote it to an "ARB approved" extension.

If the extension is very useful, the ARB may decide to integrate the extension as a "core feature" to OpenGL. This happened for example with the OpenGL Shading Language which is now a core feature of OpenGL 2.0 and higher.

This concept makes OpenGL very powerful, because source code remains backwards compatible. OpenGL programs written 10 years ago still work today..

Source Code Download

15. nigels-com/glew on GitHub
Downloads

Current release is 2.2.0. (Change Log)

Sources available as ZIP or TGZ.

Windows binaries for 32-bit and 64-bit.

Recent snapshots

Snapshots may contain new features, bug-fixes or new OpenGL extensions ahead of tested, official releases.

The OpenGL Extension Wrangler Library (GLEW) is a cross-platform open-source C/C++ extension loading library. GLEW provides efficient run-time mechanisms for determining which OpenGL extensions are supported on the target platform. OpenGL core and extension functionality is exposed in a single header file. GLEW has been tested on a variety of operating systems, including Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris.

Build

It is highly recommended to build from a tgz or zip release snapshot. The code generation workflow is a complex brew of gnu make, perl and python, that works best on Linux or Mac. The code generation is known to work on Windows using MSYS2. For most end-users of GLEW the official releases are the best choice, with first class support.

Windows Visual Studio

Use the provided Visual Studio project file in build/vc15/. Projects for vc6, vc10, vc12 and vc14 are also provided

16. freeglut

A free OpenGL utility toolkit, the open-sourced alternative to the GLUT library.

Christian Martin's tutorial also used this freeGLUT file. not sure why, but include this reference here.

17. The OpenGL Extension Wrangler Library
GLEW - The OpenGL Extension Wrangler Library

The OpenGL Extension Wrangler Library (GLEW) is a cross-platform open-source C/C++ extension loading library. GLEW provides efficient run-time mechanisms for determining which OpenGL extensions are supported on the target platform. OpenGL core and extension functionality is exposed in a single header file. GLEW has been tested on a variety of operating systems, including Windows, Linux, Mac OS X, FreeBSD, Irix, and Solaris..

18. The OpenGL Extension Wrangler Library

The OpenGL Extension Wrangler Library.

The OpenGL Extension Wrangler Library is a simple tool that helps C/C++ developers initialize extensions and write portable applications. GLEW currently supports a variety of operating systems, including Windows, Linux, Darwin, Irix, and Solaris.

Features

• Support for OpenGL 4.5
• Support for 550 OpenGL extensions
• Support for 54 WGL extensions
• Support for 65 GLX extensions

Jonathan's Post collections

19. Articles by Jonathan de Halleux (Articles: 37)

It has many good post on graphics.

20. OGLTools, A OOP solution to OpenGL programming

A set of classes designed to make programming of OpenGL easier.

21. Printing using GDI+ : a few tips

This is a paragraph.

22. A C++ Implementation of an Improved Contour Plotting Algorithm

This is a paragraph.

23. A C++ implementation of Douglas-Peucker Line Approximation Algorithm

DP Line approximation algorithm is a well-known method to approximate 2D lines. It is quite fast, O(nlog_2(n)) for a n-points line and can drastically compress a data curve. Here, a fully OOP implementation is given..

How to set .lib file?

24. How to add additional libraries to Visual Studio project?

good instruction to add .lib file.

For Visual Studio you'll want to right click on your project in the solution explorer and then click on Properties.

Next open Configuration Properties and then Linker. Now you want to add the folder you have the Allegro libraries in to Additional Library Directories,

1. Configuration Properties ->Linker -> Input -> you'll add the actual library files under Additional Dependencies.
2. For the Header Files you'll also want to include their directories under Configuration Properties ->C/C++ -> Additional Include Directories.
3. If there is a dll have a copy of it in your main project folder, and done.
I would recommend putting the Allegro files in the your project folder and then using local references in for the library and header directories. Doing this will allow you to run the application on other computers without having to install Allergo on the other computer. This was written for Visual Studio 2008. For 2010 it should be roughly the same.