diff options
Diffstat (limited to 'src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc')
| -rw-r--r-- | src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc b/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc index c93733d819..d4c0c0eb2b 100644 --- a/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc +++ b/src/quick/doc/src/concepts/visualcanvas/adaptations.qdoc @@ -17,7 +17,7 @@ in form of plugins (openvg) or built-in to the Qt Quick library From Qt 5.14 onwards, the default adaptation gains the option of rendering via a graphics abstraction layer, the Qt Rendering Hardware Interface (RHI), -provided by the \l QtGui module. When enabled, no direct OpenGL calls are made. +provided by the \l [QtGui]{Qt GUI} module. When enabled, no direct OpenGL calls are made. Rather, the scene graph renders by using the APIs provided by the abstraction layer, which is then translated into OpenGL, Vulkan, Metal, or Direct 3D calls. Shader handling is also unified by writing shader code once, compiling to @@ -98,10 +98,11 @@ graphics. For more details, see \page qtquick-visualcanvas-adaptations-software.html The Software adaptation is an alternative renderer for \l {Qt Quick} 2 that uses the Raster paint -engine to render the contents of the scene graph, instead of OpenGL. Consequently, some features -and optimizations are not available. Most Qt Quick 2 applications can run without any modification, -but any attempts to use unsupported features are ignored. By using the Software adaptation, it is -possible to run Qt Quick 2 applications on hardware and platforms that do not have OpenGL support. +engine to render the contents of the scene graph, instead of a hardware-accelerated 3D graphics API. +Consequently, some features and optimizations are not available. Most Qt Quick 2 applications can run +without any modification, but any attempts to use unsupported features are ignored. +By using the Software adaptation, it is possible to run Qt Quick 2 applications on hardware and +platforms that do not have \l{topics-graphics}{hardware-accelerated 3D graphics API} support. The Software adaptation was previously known as the Qt Quick 2D Renderer. However, unlike the 2D Renderer, this new, integrated version supports partial updates. This means that a full update @@ -121,14 +122,9 @@ even though they are not visible. \section2 Rendering Text The text rendering with the Software adaptation is based on software rasterization and does not -respond as well to transformations such as scaling, compared to when using OpenGL. The quality is -similar to choosing \l [QML] {Text::renderType}{Text.NativeRendering} with \l [QML] {Text} items. - -\section2 Qt Multimedia VideoOutput - -The Qt Multimedia module's VideoOutput item is not supported with the Software adaptation. This -is because VideoOutput uses the QVideoRendererControl item which requires custom QSGGeometryNode -behavior, which is only present in the default OpenGL adaptation. +respond as well to transformations such as scaling, compared to when using a hardware-accelerated +3D graphics API. The quality is similar to choosing \l [QML] {Text::renderType}{Text.NativeRendering} +with \l [QML] {Text} items. */ |