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-rw-r--r--src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc13
1 files changed, 13 insertions, 0 deletions
diff --git a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
index 864d90274c..e09c430e43 100644
--- a/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
+++ b/src/quick/doc/src/concepts/visualcanvas/scenegraph.qdoc
@@ -1016,6 +1016,14 @@ with multiple windows.
\li Where applicable (Vulkan, Direct3D), enables the graphics API implementation's debug
and/or validation layers, if available.
+ \row
+ \li \c QSG_RHI_PREFER_SOFTWARE_RENDERER
+ \li \c 1
+ \li Requests choosing an adapter or physical device that uses software-based
+ rasterization. Applicable only when the underlying API has support for
+ enumerating adapters (for example, Direct3D or Vulkan), and is ignored
+ otherwise.
+
\endtable
Applications wishing to always run with a single given graphics API, can
@@ -1031,4 +1039,9 @@ with multiple windows.
equivalent in effect to running with both \c QSG_RHI and \c QSG_RHI_BACKEND
set.
+ All QRhi backends will choose the system default GPU adapter or physical
+ device, unless overridden by \c{QSG_RHI_PREFER_SOFTWARE_RENDERER} or a
+ backend-specific variable, such as, \c{QT_D3D_ADAPTER_INDEX} or
+ \c{QT_VK_PHYSICAL_DEVICE_INDEX}. No further adapter configurability is
+ provided at this time.
*/