Qt has two classes for handling images. The first one is QImage, more tailored toward direct pixel manipulation. You can check the size of the image or check and modify the color of each pixel. You can convert the image into a different internal representation (say from 8-bit color map to full 32-bit color with a premultiplied alpha channel). This type, however, is not that fit for rendering. For that, we have a different class called QPixmap. The difference between the two classes is that QImage is always kept in the application memory, while QPixmap can only be a handle to a resource that may reside in the graphics card memory or on a remote X server. Its main advantage over QImage is that it can be rendered very quickly at the cost of the inability to access pixel data. You can freely convert between the two types, but bear in mind that on some platforms...
Game Programming using Qt 5 Beginner's Guide - Second Edition
Game Programming using Qt 5 Beginner's Guide - Second Edition
Overview of this book
Qt is the leading cross-platform toolkit for all significant desktop, mobile, and embedded platforms and is becoming popular by the day, especially on mobile and embedded devices. It's a powerful tool that perfectly fits the needs of game developers. This book will help you learn the basics of Qt and will equip you with the necessary toolsets to build apps and games.
The book begins by how to create an application and prepare a working environment for both desktop and mobile platforms. You will learn how to use built-in Qt widgets and Form Editor to create a GUI application and then learn the basics of creating graphical interfaces and Qt's core concepts.
Further, you'll learn to enrich your games by implementing network connectivity and employing scripting. You will learn about Qt's capabilities for handling strings and files, data storage, and serialization.
Moving on, you will learn about the new Qt Gamepad module and how to add it in your game and then delve into OpenGL and Vulcan, and how it can be used in Qt applications to implement hardware-accelerated 2D and 3D graphics. You will then explore various facets of Qt Quick: how it can be used in games to add game logic, add game physics, and build astonishing UIs for your games.
By the end of this book, you will have developed the skillset to develop interesting games with Qt.
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Current Title:
Game Programming using Qt 5 Beginner's Guide - Second Edition
Table of Contents (18 chapters)
Preface
Free Chapter
Introduction to Qt
Installation
Qt GUI Programming
Custom 2D Graphics with Graphics View
Animations in Graphics View
Qt Core Essentials
Networking
Custom Widgets
OpenGL and Vulkan in Qt applications
Scripting
Introduction to Qt Quick
Customization in Qt Quick
Animations in Qt Quick Games
Advanced Visual Effects in Qt Quick
3D Graphics with Qt
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