Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By : Lee Zhi Eng
Book Image

Qt5 C++ GUI Programming Cookbook - Second Edition

By: Lee Zhi Eng

Overview of this book

With the growing need to develop GUIs for multiple targets and multiple screens, improving the visual quality of your application becomes important so that it stands out from your competitors. With its cross-platform ability and the latest UI paradigms, Qt makes it possible to build intuitive, interactive, and user-friendly user interfaces for your applications. Qt5 C++ GUI Programming Cookbook, Second Edition teaches you how to develop functional and appealing user interfaces using the latest version of QT5 and C++. This book will help you learn a variety of topics such as GUI customization and animation, graphics rendering, implementing Google Maps, and more. You will also be taken through advanced concepts like asynchronous programming, event handling using signals and slots, network programming, various aspects of optimizing your application. By the end of the book, you will be confident to design and customize GUI applications that meet your clients' expectations and have an understanding of best practice solutions for common problems.
Table of Contents (15 chapters)

Texturing in OpenGL

OpenGL allows us to map an image (also referred to as a texture) to a 3D shape or polygon. This process is also called texture mapping. Qt 5 appears to be the best combination with OpenGL in this case because it provides an easy way to load images that belong to one of the common formats (BMP, JPEG, PNG, TARGA, TIFF, and so on), and you do not have to implement it by yourself. We will use the previous example with a spinning cube and try to map it with a texture!

How to do it...

Let's follow these steps to learn how to use textures in OpenGL:

  1. Open up renderwindow.h and add the variables, that are highlighted in the following code block:
QOpenGLContext* openGLContext;
QOpenGLFunctions* openGLFunctions...