Three scene graph examples with docs.

How to make a custom QSGGeometry, how to use QSGSimpleMaterial and how
to use render with raw GL.

Change-Id: I3e5a32b6ae12d7d781c11050ed26a54845e92cca
Reviewed-by: Gunnar Sletta <gunnar.sletta@nokia.com>

1 files changed, 78 insertions, 0 deletions

diff --git a/examples/quick/scenegraph/openglunderqml/squircle.h b/examples/quick/scenegraph/openglunderqml/squircle.h
new file mode 100644
index 0000000000..43b002256c
--- /dev/null
+++ b/examples/quick/scenegraph/openglunderqml/squircle.h
@@ -0,0 +1,78 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef SQUIRCLE_H
+#define SQUIRCLE_H
+
+#include <QtQuick/QQuickItem>
+#include <QtGui/QOpenGLShaderProgram>
+
+//! [1]
+class Squircle : public QQuickItem
+{
+    Q_OBJECT
+
+    Q_PROPERTY(qreal t READ t WRITE setT NOTIFY tChanged)
+
+public:
+    Squircle();
+
+    qreal t() const { return m_t; }
+    void setT(qreal t);
+
+signals:
+    void tChanged();
+
+protected:
+    void itemChange(ItemChange change, const ItemChangeData &);
+
+public slots:
+    void paint();
+    void cleanup();
+
+private:
+    QOpenGLShaderProgram *m_program;
+
+    qreal m_t;
+};
+//! [1]
+
+#endif // SQUIRCLE_H