January 2019
Intermediate to advanced
384 pages
11h 50m
English
Content preview from Hands-On High Performance Programming with Qt 5
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QVulkanWindow
We already mentioned the modern graphics API named Vulkan. In Qt 5.10 support for Vulkan rendering was added to the Qt framework. We need two classes for rendering our graphics through Vulkan: a global QVulkanInstance object to provide the rendering context, and a QVulkanWindow to do the painting.
Conceptually, QVulkanWindow is the counterpart of QOpenGLWindow in the Vulkan world. However, there's no counterpart for the QOpenGLWidget class, so in order to integrate a Vulkan rendered window into a widget hierarchy, we have to use the QWidget::createWindowContainer() method to create an embeddable wrapper. Note also that we cannot (yet) use QPainter on Vulkan windows or paint devices, as there's no Vulkan backend for QPainter ...
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