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Drawing Shapes and Applying Textures

The previous chapter was all about setting up our project to use different types of libraries, such as GLFW, GLEW, SMFL, and SDL. In this chapter, we'll go beyond the setup part and learn to implement some really cool OpenGL stuff. We'll learn about shaders and how to use them to create various shapes. Then, we'll move on to learn how to create a separate shader file and reference that in our code. We'll also discuss how to apply different textures to shapes using the SOIL library.

In this chapter, we'll cover the following topics in detail:

Learning to draw a triangle using a shader
Creating a separate shader file and referencing it in the main code
Drawing a rectangle and applying textures to it using the SOIL library

This chapter will initiate you into OpenGL coding and you'll learn a lot of concepts related...

Key benefits

Learn the basics of drawing along with fundamentals of shading to create amazing objects.

Get in-depth knowledge of lighting and materials to make realistic objects.

Understand the fundamentals of model loading and cube mapping.

Description

Learn OpenGL is your one-stop reference guide to get started with OpenGL and C++ for game development. From setting up the development environment to getting started with basics of drawing and shaders, along with concepts such as lighting, model loading, and cube mapping, this book will get you up to speed with the fundamentals. You begin by setting up your development environment to use OpenGL on Windows and macOS. With GLFW and GLEW set up using absolute and relative linking done, you are ready to setup SDL and SFML for both the operating systems. Now that your development environment is set up, you'll learn to draw using simple shaders as well as make the shader more adaptable and reusable. Then we move on to more advanced topics like texturing your objects with images and transforming your objects using translate, rotate and scale. With these concepts covered, we'll move on to topics like lighting to enable you to incorporate amazing dynamic lights in your game world. By the end of the book, you'll learn about model loading, right from setting up ASSIMP to learning about the model class and loading a model in your game environment. We will conclude by understanding cube mapping to bring advance worlds to your game.

Who is this book for?

This book is targeted towards 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.

What you will learn

Set up GLFW and GLEW on Windows and macOS with absolute, relative Linking

Set up SDL and SFML on your system using absolute and relative Linking

Draw using the simple shaders

Create a camera and learn to populate your game world with objects

Learn about color and lighting concepts to create an amazing game world

Understand model loading and cube mapping to advance your game

What do you get with eBook?

Instant access to your Digital eBook purchase

Download this book in EPUB and PDF formats

Access this title in our online reader with advanced features

DRM FREE - Read whenever, wherever and however you want

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sandra Apr 05, 2022

Ottima guida per iniziare

Amazon Verified review

Nate Nov 12, 2018

The author's style of writing is to literally say the function and arguments you're about to write and then he shows the code with minimal explanation. In fact, he regularly says "you should google this" for anything that needs a more thorough explanation. I've definitely learned more from Googling the individual functions than I have from his exposition.Here's an example of his walkthroughs: Then, we'll add function glBindTexture(). And for this function, we pass GL_TEXTURE_2D and texture. glBindTexture( GL_TEXTURE_2D, texture );He never explained `glBindTexture` nor `GL_TEXTURE_2D`, he just says we're using them.Ultimately, the book was $10 on packtpub.com and I don't mind it given that price. But I'd rather pay $30-$50 for a book that does a much better job.

Juli Dec 06, 2022

Leider sind alle Bilder nicht nur schwarz-weiß sondern zum Teil auch in schlechter Qualität gedruckt (pixelig und verschwommen). Das Inhaltsverzeichnis ist folgendermaßen Aufgeteilt:S 1-44 Setting up OpenGLS 45-76 Drawing Shapes and Applying TexturesS 77-111 Transformations, Projections, and CameraS 113-146 Effects of lighting, Materials and LightmapsS 147-182 Types of light sources and combining of lightsS 183-192 Implementing a Skybox Using a CubemapDie Schriftgröße ist zu groß. Alles in allem bietet das Buch zu wenig Informationen.Ich empfehle lieber ein Online Tutorial zu machen.Zumal mich das Beispiel mit den schwebenden Kisten im Buch auch sehr an ein Tutorial erinnert das ich Online gefunden habe.

W. Guest Oct 27, 2020

This is an unfortunate example of why creators can't put their work out in the open -- some (like this 'author') then take all that work (effectively word for word) and claim authorship and ownership. The 'author' here did the same thing with the UDEMY course, too.It's like someone taking out-of-copyright stories -- say, 'A Christmas Carol' -- copying it into a new format, and then claiming they wrote that story. It's absurd... but it's happening here.Purchaser beware!

Learn OpenGL: Beginner's guide to 3D rendering and game development with OpenGL and C++

What do you get with eBook?

Learn OpenGL

Drawing Shapes and Applying Textures

Drawing a triangle

Abstracting the shaders

Creating the shader files

Loading and applying textures to the shape

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