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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:FDL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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**
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** Documentation License version 1.3 as published by the Free Software
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** this file. Please review the following information to ensure
** the GNU Free Documentation License version 1.3 requirements
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/*!
\example scenegraph/d3d11underqml
\title Scene Graph - Direct3D 11 Under QML
\ingroup qtquickexamples
\brief Shows how to render directly with Direct3D 11 under a Qt Quick scene.
\image d3d11underqml-example.jpg
The Direct3D 11 Under QML example shows how an application can make use
of the \l QQuickWindow::beforeRendering() signal to draw custom
D3D11 content under a Qt Quick scene. This signal is emitted at
the start of every frame, before the scene graph starts its
rendering, thus any D3D11 draw calls that are made as a response
to this signal, will stack under the Qt Quick items.
As an alternative, applications that wish to render D3D11 content
on top of the Qt Quick scene, can do so by connecting to the \l
QQuickWindow::afterRendering() signal.
In this example, we will also see how it is possible to have
values that are exposed to QML which affect the D3D11
rendering. We animate the threshold value using a NumberAnimation
in the QML file and this value is used by the HLSL shader
program that draws the squircles.
The example is equivalent in most ways to the \l{Scene Graph - OpenGL Under
QML}{OpenGL Under QML}, \l{Scene Graph - Metal Under QML}{Metal Under QML},
and \l{Scene Graph - Vulkan Under QML}{Vulkan Under QML} examples, they all
render the same custom content, just via different native APIs.
*/
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