Frahaan Hussain - Learn OpenGL: Beginners guide to 3D rendering and game development with OpenGL and C++

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First published: August 2018

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ISBN 978-1-78934-036-5

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Frahaan Hussain is the CEO of Sonar Systems which is the world leader in educational material for the game engine Cocos2d-x, one of the best and the most popular game engines in the world. With years of experience in programming and running an online education platform (Sonar Learning), he enjoys to help and support new programmers like you.
He is also a University Lecturer teaching a variety of topics in Games Programming from Games Design to OpenGL Shader Programming.

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OpenGL is the most popular graphics library in the world; most mobile games use OpenGL and many other applications. In this book, you'll get to learn about the fundamentals that make the awesome games we play and the game engines behind them. A step-by-step process is used to show everything, from setting up OpenGL to its essential modern features. You'll gain a good understanding of the following concepts: setting up on Windows and Mac using GLFW, SDL, and SFML, 2D drawing, 3D drawing, texturing, lighting, 3D rendering, Shaders/GLSL, model loading, and cube mapping.

Learn OpenGL is for anyone and everyone who is interested in creating games, learning how game engines work, and most importantly for anyone who is interested in learning OpenGL. The ideal reader for this book would be anyone with a passion for learning game development or looking out for an OpenGL reference guide. The skills that you'll learn in this book will be applicable to all your game development needs. You'll require a strong foundation in C++ to understand and apply the concepts of this book.

, Setting Up OpenGL , In this chapter, you'll get to learn how to set up OpenGL using various libraries: GLFW, GLEW, SDL, and SFML. We'll learn how to set up our OpenGL projects on Windows and Mac. We also discuss how to link the libraries to your projects using absolute or relative linking, and eventually create the rendering windows to display OpenGL graphics.

, Drawing Shapes and Applying Textures , takes you through drawing various shapes using shaders. We'll begin by drawing a triangle and learn to add color to it. Then, we'll use the triangle concept to draw our quadrilateral and also learn how to add texture to it.

, Transformations, Projections, and Camera , This chapter further builds on the previous chapter. You'll get to grips with applying transformations such as rotation and translation to our shapes, and learn to draw a cube and apply a texture to it. Then, we explore the concepts of projections (perspective and orthographic) and implement those concepts in our game world.

, Effects of lighting, Materials, and Lightmaps , In this chapter we'll learn to apply colors to our objects and how to create a light source such as a lamp in our game world. We'll then look at the effects of light on the objects. You'll understand different types of lighting techniques: ambient, diffused, specular lighting. We'll also explore the various real worl materials and observe the effects of light on the materials. You'll also get to learn about lightmaps in this chapter.

, Types of light sources and combining of lights, This chapter will discuss the different types of light sources such as directional lights, point lights, and spotlights. We'll also learn to combine the lighting effects and the light sources for our game world.

, Implementing a Skybox Using a Cubemap, In this chapter, you'll generate a skybox using a cubemap. You'll learn how to apply textures to the skybox and then create a separate texture file to make loading of textures in the code easier. You'll also learn to draw the skybox and create our game world using it.