Game Programming using Qt 5 Beginner's Guide - Second Edition

Using Vulkan types and functions

We can let Qt handle loading the Vulkan library and resolving functions for us. It works similar to the QOpenGLFunctions set of classes. Qt provides two functions classes for Vulkan:

• The QVulkanFunctions class provides access to the Vulkan functions that are not device-specific
• The QVulkanDeviceFunctions class provides functions that work on a specific VkDevice

You can obtain these objects by calling the functions() and deviceFunctions(VkDevice device) methods of the QVulkanInstance class, respectively. You will usually use the device functions a lot in the renderer, so a common pattern is to add the QVulkanDeviceFunctions *m_devFuncs private field to your renderer class and initialize it in the initResources() ...