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Example code from the OpenGL 4 Shading Language Cookbook, 3rd Edition

The example code from the OpenGL 4 Shading Language Cookbook, 3rd Edition, by David Wolff and published by Packt Publishing.

Requirements

To compile these examples, you'll need the following:

Compiling the examples

The example code builds with CMake. Note that the examples for Chapter 10 will not function on MacOS due to lack of support for compute shaders on that platform.

  1. Install GLFW by following the instructions on their web site.
  2. Install the latest version of GLM. Note that for CMake to find GLM correctly, you need to run the install "build" (e.g. make install) or install GLM from your favorite package manager. Otherwise, the CMake config files will not be created/available.
  3. Download this example code from github, or clone using git.
  4. Run cmake. If cmake has difficulties finding the GLFW or GLM installations, set the variable CMAKE_PREFIX_PATH to help cmake find them.
    It can be tricky to get CMake to find the GLM libraries, unfortunately. See below for tips.
  5. Compile by running make.

Any problems, create an issue on github.

Tips for getting CMake to find GLM

When searching for GLM, CMake looks for the files glmConfig.cmake and glmConfigVersion.cmake.

If you install GLM using a package manager such as Homebrew on macOS, or a Linux package manager the cmake files should already be included.

Otherwise, if you're using the GLM source distribution, you'll have to run GLM through CMake to get it to generate the glmConfig.cmake and glmConfigVersion.cmake files. It is frustrating, I wish that the GLM maintainers didn't require this.

  1. Download GLM and extract it to some location: GLM_SRC
  2. cd $GLM_SRC
  3. mkdir build
  4. cd build
  5. cmake -D GLM_TEST_ENABLE=OFF -D CMAKE_INSTALL_PREFIX=MY_GLM_LOCATION ..
  6. cmake --build . --target install

Replace GLM_SRC above with the place where you extracted the GLM zip file, and replace MY_GLM_LOCATION with the location where you want to install GLM. This should generate the needed cmake files and install all of GLM to MY_GLM_LOCATION.

Tips for compiling for Windows with Visual Studio

OpenGL Function Loading

An OpenGL header file and a function loader for a 4.3 core profile are included with this project. They were generated using GLAD. This loader should also work on MacOS under a 4.1 core profile, but of course not all functions will load.

The code has been tested with OpenGL 4.3 on Windows/Linux and OpenGL 4.1 on MacOS.

OpenGL 4 Shading Language Cookbook - Third Edition

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This is the code repository for OpenGL 4 Shading Language Cookbook - Third Edition, published by Packt.

Build high-quality, real-time 3D graphics with OpenGL 4.6, GLSL 4.6 and C++17

What is this book about?

OpenGL 4 Shading Language Cookbook, Third Edition provides easy-to-follow recipes that first walk you through the theory and background behind each technique, and then proceed to showcase and explain the GLSL and OpenGL code needed to implement them.

This book covers the following exciting features:

If you feel this book is for you, get your copy today!

<a href="https://www.packtpub.com/?utm_source=github&utm_medium=banner&utm_campaign=GitHubBanner"><img src="https://raw.githubusercontent.com/PacktPublishing/GitHub/master/GitHub.png" alt="https://www.packtpub.com/" border="5" /></a>

Instructions and Navigations

All of the code is organized into folders. For example, Chapter02.

The code will look like the following:

glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
GLFWwindow *window = glfwCreateWindow(800, 600, "Title", nullptr, nullptr);

Following is what you need for this book: If you are a graphics programmer looking to learn the GLSL shading language, this book is for you. A basic understanding of 3D graphics and programming experience with C++ are required.

With the following software and hardware list you can run all code files present in the book (Chapter 1-11).

Software and Hardware List

ChapterSoftware requiredOS required
AllGLM Mathematics LibraryWindows, Mac OS X, and Linux (Any)
GLFWWindows, Mac OS X, and Linux (Any)
CMakeWindows, Mac OS X, and Linux (Any)
Visual Studio 2017Windows, Mac OS X, and Linux (Any)

We also provide a PDF file that has color images of the screenshots/diagrams used in this book. Click here to download it.

Errata

Related products

Get to Know the Author

David Wolff is a professor in the computer science department at Pacific Lutheran University (PLU). He received a PhD in Physics and an MS in computer science from Oregon State University. He has been teaching computer graphics to undergraduates at PLU for over 17 years, using OpenGL.

Other books by the author

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