Hi list, while checking out the status of Qt's graphics stack with very basic QtQuick based applications I've made the following observations:
1. Windows 10 in VMWare Fusion: No window content is rendered for a trivial QtQuick Hello World application. Running with QT_D3D_ADAPTER_INDEX=1 helps, but this seems to activate the WARP software renderer (QTBUG-78648). 2. Any QtQuick application using WebEngineView (QtWebEngineQuick) will automatically select OpenGLRhi backend (678076faeabd7e827abe31f72f4220af8d8f95ac): QtWebEngineQuick::initialize does QQuickWindow::setGraphicsApi(QSGRendererInterface::OpenGLRhi); I've not found this restriction to be documented. OpenGL is not available by default on Windows and drivers are notoriously bad. RHI/D3D11 was supposed to be the solution for this, wasn't it? Software Rendering is no longer an option since Chromium dropped the old composer codepath (QTBUG-88695), at least if video rendering is required. So is it possible at all to build a QtQuick application that is * running out-of-the-box in VMWare (Fusion) without relying on the hack to select WARP? * using hardware accelerated Chromium on Windows without OpenGL? Nils RHI_INFO output attached: ----- RHI_INFO: Windows/VMWare Fusion qt.scenegraph.general: Using QRhi with backend D3D11 Graphics API debug/validation layers: 0 QRhi profiling and debug markers: 0 Shader/pipeline cache collection: 0 qt.scenegraph.general: threaded render loop qt.scenegraph.general: Using sg animation driver qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms qt.scenegraph.general: Using sg animation driver qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms qt.rhi.general: DXGI 1.2 = true, FLIP_DISCARD swapchain supported = true qt.rhi.general: Adapter 0: 'VMware SVGA 3D' (vendor 0x15AD device 0x405 flags 0x0) qt.rhi.general: using this adapter qt.rhi.general: Adapter 1: 'Microsoft Basic Render Driver' (vendor 0x1414 device 0x8C flags 0x2) qt.scenegraph.general: MSAA sample count for the swapchain is 1. Alpha channel requested = no. qt.scenegraph.general: rhi texture atlas dimensions: 2048x1024 ---- RHI_INFO: Windows/QtWebEngineQuick qt.scenegraph.general: Using QRhi with backend OpenGL Graphics API debug/validation layers: 0 QRhi profiling and debug markers: 0 Shader/pipeline cache collection: 0 qt.scenegraph.general: threaded render loop qt.scenegraph.general: Using sg animation driver qt.scenegraph.general: Animation Driver: using vsync: 16.67 ms qt.webenginecontext: GLImplementation: desktop Surface Type: OpenGL Surface Profile: CompatibilityProfile Surface Version: 4.1 Using Default SG Backend: yes Using Software Dynamic GL: no Using Angle: no _______________________________________________ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
