Direct3d overrider gui driver#

All the backend's own shaders (used by the built-in materials on which the Rectangle, Image, Text, etc. The D3D12 backend also introduces support for pre-compiled shaders. The backend does not heavily utilize threads yet, which means there are opportunities for further improvements in the future, for example to further optimize image loading.

Direct3d overrider gui driver#

Performance-wise the general expectation is a somewhat lower CPU usage compared to OpenGL due to lower driver overhead, and a higher GPU utilization with less wasted idle time. This means that there are fewer problems anticipated with drivers, operations like window resizes, and special events like graphics device loss caused by device resets or graphics driver updates. It also allows better integration with Windows, Direct3D being the primary vendor-supported solution. This experimental adaptation is the first Qt Quick backend focusing on a modern, lower-level graphics API in combination with a windowing system interface different from the traditional approaches used in combination with OpenGL. However, it is never the default, meaning the user or the application has to explicitly request it by setting the QT_QUICK_BACKEND environment variable to d3d12 or by calling QQuickWindow::setSceneGraphBackend(). The adaptation is available both in normal, OpenGL-enabled Qt builds and also when Qt was configured with -no-opengl. In practice this currently means Visual Studio 2015 and newer.

The building of the plugin is enabled automatically whenever the necessary D3D and DXGI develpoment files are present. It will not be functional on earlier Windows versions. The Direct3D 12 adaptation for Windows 10 (both Win32 ( windows platform plugin) and UWP ( winrt platform plugin)) is shipped as a dynamically loaded plugin.