Before we start creating our first minimal Vulkan application, let's get familiar with the Qt classes we'll need for the task.
Unlike OpenGL, Vulkan doesn't have a global state. Interaction with Vulkan starts with the instance object represented by the VkInstance type. An application usually creates a single VkInstance object that contains the application-wide state. All other Vulkan objects can only be created from the instance object. In Qt, the corresponding class is QVulkanInstance. This class provides a convenient way to configure Vulkan and then initialize it with the given configuration. You can also use its supportedExtensions() and supportedLayers() functions to query supported features before ...
