Remove QSGSimpleMaterial

And port the graph example to QSGMaterial and the RHI. We will not anymore add a
direct OpenGL path (that would mean using QSGMaterialShader) for the example because
the upcoming purge renders that useless anyway.

Task-number: QTBUG-82988
Change-Id: I137575ed5df45b6bfc34a11d73dc5100945081c5
Reviewed-by: Andy Nichols <andy.nichols@qt.io>

28 files changed, 312 insertions, 1013 deletions

diff --git a/examples/quick/scenegraph/CMakeLists.txt b/examples/quick/scenegraph/CMakeLists.txt
index 61e66aa322..2a5db7da54 100644
--- a/examples/quick/scenegraph/CMakeLists.txt
+++ b/examples/quick/scenegraph/CMakeLists.txt
@@ -5,7 +5,6 @@ add_subdirectory(customgeometry)
 add_subdirectory(threadedanimation)
 if(QT_FEATURE_opengl OR QT_FEATURE_opengles2 OR QT_FEATURE_opengles3)
     add_subdirectory(graph)
-    add_subdirectory(simplematerial)
     add_subdirectory(fboitem)
     add_subdirectory(openglunderqml)
     add_subdirectory(textureinthread)
diff --git a/examples/quick/scenegraph/graph/graph.qrc b/examples/quick/scenegraph/graph/graph.qrc
index 2adaeac751..b7fc7539f8 100644
--- a/examples/quick/scenegraph/graph/graph.qrc
+++ b/examples/quick/scenegraph/graph/graph.qrc
@@ -1,9 +1,9 @@
 <RCC>
     <qresource prefix="/scenegraph/graph">
         <file>main.qml</file>
-        <file>shaders/noisy.vsh</file>
-        <file>shaders/noisy.fsh</file>
-        <file>shaders/line.vsh</file>
-        <file>shaders/line.fsh</file>
+        <file>shaders/noisy.vert.qsb</file>
+        <file>shaders/noisy.frag.qsb</file>
+        <file>shaders/line.vert.qsb</file>
+        <file>shaders/line.frag.qsb</file>
     </qresource>
 </RCC>
diff --git a/examples/quick/scenegraph/graph/linenode.cpp b/examples/quick/scenegraph/graph/linenode.cpp
index cb7f1c8e7f..5d4d8acd20 100644
--- a/examples/quick/scenegraph/graph/linenode.cpp
+++ b/examples/quick/scenegraph/graph/linenode.cpp
@@ -52,45 +52,90 @@
 
 #include <QtGui/QColor>
 
-#include <QtQuick/QSGSimpleMaterial>
+#include <QtQuick/QSGMaterial>
 
-struct LineMaterial
+class LineShader : public QSGMaterialRhiShader
 {
-    QColor color;
-    float spread;
-    float size;
+public:
+    LineShader() {
+        setShaderFileName(VertexStage, QLatin1String(":/scenegraph/graph/shaders/line.vert.qsb"));
+        setShaderFileName(FragmentStage, QLatin1String(":/scenegraph/graph/shaders/line.frag.qsb"));
+    }
+
+    bool updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override;
 };
 
-class LineShader : public QSGSimpleMaterialShader<LineMaterial>
+class LineMaterial : public QSGMaterial
 {
-    QSG_DECLARE_SIMPLE_SHADER(LineShader, LineMaterial)
-
 public:
-    LineShader() {
-        setShaderSourceFile(QOpenGLShader::Vertex, ":/scenegraph/graph/shaders/line.vsh");
-        setShaderSourceFile(QOpenGLShader::Fragment, ":/scenegraph/graph/shaders/line.fsh");
+    LineMaterial()
+    {
+        setFlag(SupportsRhiShader);
+        setFlag(Blending);
     }
 
-    QList<QByteArray> attributes() const override {  return QList<QByteArray>() << "pos" << "t"; }
+    QSGMaterialType *type() const override
+    {
+        static QSGMaterialType type;
+        return &type;
+    }
 
-    void updateState(const LineMaterial *m, const LineMaterial *) override {
-        program()->setUniformValue(id_color, m->color);
-        program()->setUniformValue(id_spread, m->spread);
-        program()->setUniformValue(id_size, m->size);
+    QSGMaterialShader *createShader() const override
+    {
+        Q_ASSERT(flags().testFlag(RhiShaderWanted));
+        return new LineShader;
     }
 
-    void resolveUniforms() override {
-        id_spread = program()->uniformLocation("spread");
-        id_size = program()->uniformLocation("size");
-        id_color = program()->uniformLocation("color");
+    int compare(const QSGMaterial *m) const override
+    {
+        const LineMaterial *other = static_cast<const LineMaterial *>(m);
+
+        if (int diff = int(state.color.rgb()) - int(other->state.color.rgb()))
+            return diff;
+
+        if (int diff = state.size - other->state.size)
+            return diff;
+
+        if (int diff = state.spread - other->state.spread)
+            return diff;
+
+        return 0;
     }
 
-private:
-    int id_color = -1;
-    int id_spread = -1;
-    int id_size = -1;
+    struct {
+        QColor color;
+        float size;
+        float spread;
+    } state;
 };
 
+bool LineShader::updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *)
+{
+    QByteArray *buf = state.uniformData();
+    Q_ASSERT(buf->size() >= 92);
+
+    if (state.isMatrixDirty()) {
+        const QMatrix4x4 m = state.combinedMatrix();
+        memcpy(buf->data(), m.constData(), 64);
+    }
+
+    if (state.isOpacityDirty()) {
+        const float opacity = state.opacity();
+        memcpy(buf->data() + 80, &opacity, 4);
+    }
+
+    LineMaterial *mat = static_cast<LineMaterial *>(newMaterial);
+    float c[4] = { float(mat->state.color.redF()),
+                   float(mat->state.color.greenF()),
+                   float(mat->state.color.blueF()),
+                   float(mat->state.color.alphaF()) };
+    memcpy(buf->data() + 64, c, 16);
+    memcpy(buf->data() + 84, &mat->state.size, 4);
+    memcpy(buf->data() + 88, &mat->state.spread, 4);
+
+    return true;
+}
+
 struct LineVertex {
     float x;
     float y;
@@ -114,11 +159,11 @@ LineNode::LineNode(float size, float spread, const QColor &color)
     setGeometry(&m_geometry);
     m_geometry.setDrawingMode(GL_TRIANGLE_STRIP);
 
-    QSGSimpleMaterial<LineMaterial> *m = LineShader::createMaterial();
-    m->state()->color = color;
-    m->state()->size = size;
-    m->state()->spread = spread;
-    m->setFlag(QSGMaterial::Blending);
+    LineMaterial *m = new LineMaterial;
+    m->state.color = color;
+    m->state.size = size;
+    m->state.spread = spread;
+
     setMaterial(m);
     setFlag(OwnsMaterial);
 }
diff --git a/examples/quick/scenegraph/graph/main.cpp b/examples/quick/scenegraph/graph/main.cpp
index 854fad84e3..95c310131b 100644
--- a/examples/quick/scenegraph/graph/main.cpp
+++ b/examples/quick/scenegraph/graph/main.cpp
@@ -56,6 +56,8 @@
 
 int main(int argc, char *argv[])
 {
+    qputenv("QSG_RHI", "1"); // ### Qt 6 remove, this will be the default anyway
+
     QGuiApplication a(argc, argv);
 
     QQuickView view;
diff --git a/examples/quick/scenegraph/graph/noisynode.cpp b/examples/quick/scenegraph/graph/noisynode.cpp
index de5a616da2..d67110f48a 100644
--- a/examples/quick/scenegraph/graph/noisynode.cpp
+++ b/examples/quick/scenegraph/graph/noisynode.cpp
@@ -51,63 +51,113 @@
 #include "noisynode.h"
 
 #include <QtCore/QRandomGenerator>
-#include <QtQuick/QSGSimpleMaterialShader>
+
 #include <QtQuick/QSGTexture>
 #include <QtQuick/QQuickWindow>
+#include <QtQuick/QSGMaterial>
 
 #define NOISE_SIZE 64
 
-struct NoisyMaterial
+class NoisyShader : public QSGMaterialRhiShader
 {
-    ~NoisyMaterial() {
-        delete texture;
+public:
+    NoisyShader() {
+        setShaderFileName(VertexStage, QLatin1String(":/scenegraph/graph/shaders/noisy.vert.qsb"));
+        setShaderFileName(FragmentStage, QLatin1String(":/scenegraph/graph/shaders/noisy.frag.qsb"));
     }
 
-    QColor color;
-    QSGTexture *texture;
+    bool updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override;
+    void updateSampledImage(RenderState &state, int binding, QSGTexture **texture,
+                            QSGMaterial *newMaterial, QSGMaterial *oldMaterial) override;
 };
 
-class NoisyShader : public QSGSimpleMaterialShader<NoisyMaterial>
+class NoisyMaterial : public QSGMaterial
 {
-    QSG_DECLARE_SIMPLE_SHADER(NoisyShader, NoisyMaterial)
-
 public:
-    NoisyShader() {
-        setShaderSourceFile(QOpenGLShader::Vertex, ":/scenegraph/graph/shaders/noisy.vsh");
-        setShaderSourceFile(QOpenGLShader::Fragment, ":/scenegraph/graph/shaders/noisy.fsh");
+    NoisyMaterial()
+    {
+        setFlag(SupportsRhiShader);
+        setFlag(Blending);
+    }
+
+    ~NoisyMaterial()
+    {
+        delete state.texture;
     }
 
-    QList<QByteArray> attributes() const override {  return QList<QByteArray>() << "aVertex" << "aTexCoord"; }
+    QSGMaterialType *type() const override
+    {
+        static QSGMaterialType type;
+        return &type;
+    }
 
-    void updateState(const NoisyMaterial *m, const NoisyMaterial *) override {
+    QSGMaterialShader *createShader() const override
+    {
+        Q_ASSERT(flags().testFlag(RhiShaderWanted));
+        return new NoisyShader;
+    }
 
-        // Set the color
-        program()->setUniformValue(id_color, m->color);
+    int compare(const QSGMaterial *m) const override
+    {
+        const NoisyMaterial *other = static_cast<const NoisyMaterial *>(m);
 
-        // Bind the texture and set program to use texture unit 0 (the default)
-        m->texture->bind();
+        if (int diff = int(state.color.rgb()) - int(other->state.color.rgb()))
+            return diff;
 
-        // Then set the texture size so we can adjust the texture coordinates accordingly in the
-        // vertex shader..
-        QSize s = m->texture->textureSize();
-        program()->setUniformValue(id_textureSize, QSizeF(1.0 / s.width(), 1.0 / s.height()));
-    }
+        if (!state.texture || !other->state.texture)
+            return state.texture ? 1 : -1;
 
-    void resolveUniforms() override {
-        id_texture = program()->uniformLocation("texture");
-        id_textureSize = program()->uniformLocation("textureSize");
-        id_color = program()->uniformLocation("color");
+        if (int diff = state.texture->comparisonKey() - other->state.texture->comparisonKey())
+            return diff;
 
-        // We will only use texture unit 0, so set it only once.
-        program()->setUniformValue(id_texture, 0);
+        return 0;
     }
 
-private:
-    int id_color = -1;
-    int id_texture = -1;
-    int id_textureSize = -1;
+    struct {
+        QColor color;
+        QSGTexture *texture;
+    } state;
 };
 
+bool NoisyShader::updateUniformData(RenderState &state, QSGMaterial *newMaterial, QSGMaterial *)
+{
+    QByteArray *buf = state.uniformData();
+    Q_ASSERT(buf->size() >= 92);
+
+    if (state.isMatrixDirty()) {
+        const QMatrix4x4 m = state.combinedMatrix();
+        memcpy(buf->data(), m.constData(), 64);
+    }
+
+    if (state.isOpacityDirty()) {
+        const float opacity = state.opacity();
+        memcpy(buf->data() + 88, &opacity, 4);
+    }
+
+    NoisyMaterial *mat = static_cast<NoisyMaterial *>(newMaterial);
+    float c[4] = { float(mat->state.color.redF()),
+                   float(mat->state.color.greenF()),
+                   float(mat->state.color.blueF()),
+                   float(mat->state.color.alphaF()) };
+    memcpy(buf->data() + 64, c, 16);
+
+    const QSize s = mat->state.texture->textureSize();
+    float textureSize[2] = { 1.0f / s.width(), 1.0f / s.height() };
+    memcpy(buf->data() + 80, textureSize, 8);
+
+    return true;
+}
+
+void NoisyShader::updateSampledImage(RenderState &state, int binding, QSGTexture **texture,
+                                     QSGMaterial *newMaterial, QSGMaterial *)
+{
+    Q_UNUSED(state);
+    Q_UNUSED(binding);
+
+    NoisyMaterial *mat = static_cast<NoisyMaterial *>(newMaterial);
+    *texture = mat->state.texture;
+}
+
 NoisyNode::NoisyNode(QQuickWindow *window)
 {
     // Make some noise...
@@ -123,10 +173,9 @@ NoisyNode::NoisyNode(QQuickWindow *window)
     t->setHorizontalWrapMode(QSGTexture::Repeat);
     t->setVerticalWrapMode(QSGTexture::Repeat);
 
-    QSGSimpleMaterial<NoisyMaterial> *m = NoisyShader::createMaterial();
-    m->state()->texture = t;
-    m->state()->color = QColor::fromRgbF(0.95, 0.95, 0.97);
-    m->setFlag(QSGMaterial::Blending);
+    NoisyMaterial *m = new NoisyMaterial;
+    m->state.texture = t;
+    m->state.color = QColor::fromRgbF(0.95, 0.95, 0.97);
 
     setMaterial(m);
     setFlag(OwnsMaterial, true);
diff --git a/examples/quick/scenegraph/graph/shaders/compile.bat b/examples/quick/scenegraph/graph/shaders/compile.bat
new file mode 100644
index 0000000000..4ec3f2ec8e
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/compile.bat
@@ -0,0 +1,54 @@
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+::
+:: Copyright (C) 2019 The Qt Company Ltd.
+:: Contact: https://www.qt.io/licensing/
+::
+:: This file is part of the examples of the Qt Toolkit.
+::
+:: $QT_BEGIN_LICENSE:BSD$
+:: Commercial License Usage
+:: Licensees holding valid commercial Qt licenses may use this file in
+:: accordance with the commercial license agreement provided with the
+:: Software or, alternatively, in accordance with the terms contained in
+:: a written agreement between you and The Qt Company. For licensing terms
+:: and conditions see https://www.qt.io/terms-conditions. For further
+:: information use the contact form at https://www.qt.io/contact-us.
+::
+:: BSD License Usage
+:: Alternatively, you may use this file under the terms of the BSD license
+:: as follows:
+::
+:: "Redistribution and use in source and binary forms, with or without
+:: modification, are permitted provided that the following conditions are
+:: met:
+::   * Redistributions of source code must retain the above copyright
+::     notice, this list of conditions and the following disclaimer.
+::   * Redistributions in binary form must reproduce the above copyright
+::     notice, this list of conditions and the following disclaimer in
+::     the documentation and/or other materials provided with the
+::     distribution.
+::   * Neither the name of The Qt Company Ltd nor the names of its
+::     contributors may be used to endorse or promote products derived
+::     from this software without specific prior written permission.
+::
+::
+:: THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+:: "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+:: LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+:: A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+:: OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+:: SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+:: LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+:: DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+:: THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+:: (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+:: OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+::
+:: $QT_END_LICENSE$
+::
+:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
+
+qsb -b --glsl "150,120,100 es" --hlsl 50 --msl 12 -o noisy.vert.qsb noisy.vert
+qsb --glsl "150,120,100 es" --hlsl 50 --msl 12 -o noisy.frag.qsb noisy.frag
+qsb -b --glsl "150,120,100 es" --hlsl 50 --msl 12 -o line.vert.qsb line.vert
+qsb --glsl "150,120,100 es" --hlsl 50 --msl 12 -o line.frag.qsb line.frag
diff --git a/examples/quick/scenegraph/graph/shaders/line.frag b/examples/quick/scenegraph/graph/shaders/line.frag
new file mode 100644
index 0000000000..44b5b24c94
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/line.frag
@@ -0,0 +1,21 @@
+#version 440
+
+layout(location = 0) in float vT;
+
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    vec4 color;
+    float qt_Opacity;
+    float size;
+    float spread;
+};
+
+#define PI 3.14159265358979323846
+
+void main(void)
+{
+    float tt = smoothstep(spread, 1.0, sin(vT * PI));
+    fragColor = color * qt_Opacity * tt;
+}
diff --git a/examples/quick/scenegraph/graph/shaders/line.frag.qsb b/examples/quick/scenegraph/graph/shaders/line.frag.qsb
new file mode 100644
index 0000000000..7efcd94c37
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/line.frag.qsb
diff --git a/examples/quick/scenegraph/graph/shaders/line.fsh b/examples/quick/scenegraph/graph/shaders/line.fsh
deleted file mode 100644
index 77e05a2d15..0000000000
--- a/examples/quick/scenegraph/graph/shaders/line.fsh
+++ /dev/null
@@ -1,64 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-uniform lowp vec4 color;
-uniform lowp float qt_Opacity;
-uniform lowp float spread;
-
-varying lowp float vT;
-
-#define PI 3.14159265358979323846
-
-void main(void)
-{
-    lowp float tt = smoothstep(spread, 1.0, sin(vT * PI));
-
-    gl_FragColor = color * qt_Opacity * tt;
-}
diff --git a/examples/quick/scenegraph/graph/shaders/line.vert b/examples/quick/scenegraph/graph/shaders/line.vert
new file mode 100644
index 0000000000..eac4273f0a
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/line.vert
@@ -0,0 +1,25 @@
+#version 440
+
+layout(location = 0) in vec4 pos;
+layout(location = 1) in float t;
+
+layout(location = 0) out float vT;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    vec4 color;
+    float qt_Opacity;
+    float size;
+    float spread;
+};
+
+out gl_PerVertex { vec4 gl_Position; };
+
+void main(void)
+{
+    vec4 adjustedPos = pos;
+    adjustedPos.y += (t * size);
+    gl_Position = qt_Matrix * adjustedPos;
+
+    vT = t;
+}
diff --git a/examples/quick/scenegraph/graph/shaders/line.vert.qsb b/examples/quick/scenegraph/graph/shaders/line.vert.qsb
new file mode 100644
index 0000000000..c17b16960f
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/line.vert.qsb
diff --git a/examples/quick/scenegraph/graph/shaders/line.vsh b/examples/quick/scenegraph/graph/shaders/line.vsh
deleted file mode 100644
index 4f00ab9e5d..0000000000
--- a/examples/quick/scenegraph/graph/shaders/line.vsh
+++ /dev/null
@@ -1,66 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-attribute highp vec4 pos;
-attribute highp float t;
-
-uniform lowp float size;
-uniform highp mat4 qt_Matrix;
-
-varying lowp float vT;
-
-void main(void)
-{
-    vec4 adjustedPos = pos;
-    adjustedPos.y += (t * size);
-    gl_Position = qt_Matrix * adjustedPos;
-
-    vT = t;
-}
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.frag b/examples/quick/scenegraph/graph/shaders/noisy.frag
new file mode 100644
index 0000000000..8cea9de02b
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/noisy.frag
@@ -0,0 +1,24 @@
+#version 440
+
+layout(location = 0) in vec2 vTexCoord;
+layout(location = 1) in vec2 vShadeCoord;
+
+layout(location = 0) out vec4 fragColor;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    vec4 color;
+    vec2 textureSize;
+    float qt_Opacity;
+};
+
+layout(binding = 1) uniform sampler2D qt_Texture;
+
+#define PI 3.14159265358979323846
+
+void main()
+{
+    float shade = texture(qt_Texture, vTexCoord).r * 0.05 - length(vec2(0.5, 0.4) - vShadeCoord) * 0.3;
+    vec4 c = vec4(color.xyz + shade, color.w);
+    fragColor = c * qt_Opacity;
+}
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.frag.qsb b/examples/quick/scenegraph/graph/shaders/noisy.frag.qsb
new file mode 100644
index 0000000000..77f29bd253
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/noisy.frag.qsb
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.fsh b/examples/quick/scenegraph/graph/shaders/noisy.fsh
deleted file mode 100644
index 14ea675360..0000000000
--- a/examples/quick/scenegraph/graph/shaders/noisy.fsh
+++ /dev/null
@@ -1,65 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-uniform sampler2D texture;
-uniform lowp float qt_Opacity;
-uniform lowp vec4 color;
-
-varying highp vec2 vTexCoord;
-varying lowp vec2 vShadeCoord;
-
-#define PI 3.14159265358979323846
-
-void main()
-{
-    lowp float shade = texture2D(texture, vTexCoord).r * 0.05 - length(vec2(0.5, 0.4) - vShadeCoord) * 0.3;
-    lowp vec4 c = vec4(color.xyz + shade, color.w);
-    gl_FragColor = c * qt_Opacity;
-}
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.vert b/examples/quick/scenegraph/graph/shaders/noisy.vert
new file mode 100644
index 0000000000..5728f2a02f
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/noisy.vert
@@ -0,0 +1,22 @@
+#version 440
+
+layout(location = 0) in vec4 aVertex;
+layout(location = 1) in vec2 aTexCoord;
+
+layout(location = 0) out vec2 vTexCoord;
+layout(location = 1) out vec2 vShadeCoord;
+
+layout(std140, binding = 0) uniform buf {
+    mat4 qt_Matrix;
+    vec4 color;
+    vec2 textureSize;
+    float qt_Opacity;
+};
+
+out gl_PerVertex { vec4 gl_Position; };
+
+void main() {
+    gl_Position = qt_Matrix * aVertex;
+    vTexCoord = aVertex.xy * textureSize;
+    vShadeCoord = aTexCoord;
+}
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.vert.qsb b/examples/quick/scenegraph/graph/shaders/noisy.vert.qsb
new file mode 100644
index 0000000000..d405024983
--- /dev/null
+++ b/examples/quick/scenegraph/graph/shaders/noisy.vert.qsb
diff --git a/examples/quick/scenegraph/graph/shaders/noisy.vsh b/examples/quick/scenegraph/graph/shaders/noisy.vsh
deleted file mode 100644
index 1f89dbcc29..0000000000
--- a/examples/quick/scenegraph/graph/shaders/noisy.vsh
+++ /dev/null
@@ -1,64 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the examples of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-attribute highp vec4 aVertex;
-attribute highp vec2 aTexCoord;
-
-uniform highp mat4 qt_Matrix;
-uniform highp vec2 textureSize;
-
-varying highp vec2 vTexCoord;
-varying lowp vec2 vShadeCoord;
-
-void main() {
-    gl_Position = qt_Matrix * aVertex;
-    vTexCoord = aVertex.xy * textureSize;
-    vShadeCoord = aTexCoord;
-}
diff --git a/examples/quick/scenegraph/scenegraph.pro b/examples/quick/scenegraph/scenegraph.pro
index 235b51cd72..b9ce61e21d 100644
--- a/examples/quick/scenegraph/scenegraph.pro
+++ b/examples/quick/scenegraph/scenegraph.pro
@@ -3,7 +3,6 @@ TEMPLATE = subdirs
 qtConfig(opengl(es1|es2)?) {
     SUBDIRS += \
             graph \
-            simplematerial \
             fboitem \
             openglunderqml \
             textureinthread \
diff --git a/examples/quick/scenegraph/simplematerial/CMakeLists.txt b/examples/quick/scenegraph/simplematerial/CMakeLists.txt
deleted file mode 100644
index 332f972d60..0000000000
--- a/examples/quick/scenegraph/simplematerial/CMakeLists.txt
+++ /dev/null
@@ -1,53 +0,0 @@
-# Generated from simplematerial.pro.
-
-cmake_minimum_required(VERSION 3.14)
-project(simplematerial LANGUAGES CXX)
-
-set(CMAKE_INCLUDE_CURRENT_DIR ON)
-
-set(CMAKE_AUTOMOC ON)
-set(CMAKE_AUTORCC ON)
-set(CMAKE_AUTOUIC ON)
-
-set(INSTALL_EXAMPLEDIR "examples/quick/scenegraph/simplematerial")
-
-find_package(Qt6 COMPONENTS Core)
-find_package(Qt6 COMPONENTS Gui)
-find_package(Qt6 COMPONENTS Quick)
-
-add_qt_gui_executable(simplematerial
-    simplematerial.cpp
-    simplematerialitem.cpp simplematerialitem.h
-)
-target_link_libraries(simplematerial PUBLIC
-    Qt::Core
-    Qt::Gui
-    Qt::Quick
-)
-
-
-# Resources:
-set(simplematerial_resource_files
-    "main.qml"
-)
-
-qt6_add_resources(simplematerial "simplematerial"
-    PREFIX
-        "/scenegraph/simplematerial"
-    FILES
-        ${simplematerial_resource_files}
-)
-
-install(TARGETS simplematerial
-    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
-    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
-    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
-)
-
-set_target_properties(simplematerial PROPERTIES
-    QT_QML_MODULE_INSTALL_QMLTYPES TRUE
-    QT_QML_MODULE_VERSION 1.0
-    QT_QML_MODULE_URI SimpleMaterial
-)
-
-qt6_qml_type_registration(simplematerial)
diff --git a/examples/quick/scenegraph/simplematerial/doc/images/simplematerial-example.jpg b/examples/quick/scenegraph/simplematerial/doc/images/simplematerial-example.jpg
deleted file mode 100644
index 08db8dee4e..0000000000
--- a/examples/quick/scenegraph/simplematerial/doc/images/simplematerial-example.jpg
+++ /dev/null
diff --git a/examples/quick/scenegraph/simplematerial/doc/src/simplematerial.qdoc b/examples/quick/scenegraph/simplematerial/doc/src/simplematerial.qdoc
deleted file mode 100644
index d7de1613e4..0000000000
--- a/examples/quick/scenegraph/simplematerial/doc/src/simplematerial.qdoc
+++ /dev/null
@@ -1,180 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2017 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
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** GNU Free Documentation License Usage
-** Alternatively, this file may be used under the terms of the GNU Free
-** Documentation License version 1.3 as published by the Free Software
-** Foundation and appearing in the file included in the packaging of
-** this file. Please review the following information to ensure
-** the GNU Free Documentation License version 1.3 requirements
-** will be met: https://www.gnu.org/licenses/fdl-1.3.html.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-/*!
-    \example scenegraph/simplematerial
-    \title Scene Graph - Simple Material
-    \ingroup qtquickexamples
-    \brief Shows how to define a scene graph material to fill a shape.
-
-    \image simplematerial-example.jpg
-
-    In this example, we will make use of the \l
-    QSGSimpleMaterialShader class to fill a shape in the scene
-    graph. This is a convenience class intended to avoid a lot of the
-    boilerplate code required when creating materials with the \l
-    QSGMaterial, \l QSGMaterialShader and \l QSGMaterialType classes
-    directly.
-
-    A simple material consists of two parts: the material state and
-    the material shader. The material shader has one instance per
-    scene graph and contains the actual OpenGL shader program and
-    information about which attributes and uniforms it uses. The
-    material state is what we assign to each individual node; in this
-    case to give them different colors.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 1
-
-    The first thing we do when creating custom materials with the
-    simplified scheme is to create a state class. In this case the
-    state class contains only one member, a QColor. It also defines a
-    compare function which the scene graph can use to reorder the node
-    rendering.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 2
-
-    Next we define the material shader, by subclassing a template
-    instantiation of \l QSGSimpleMaterialShader with our \c State.
-
-    Then we use the macro \l QSG_DECLARE_SIMPLE_COMPARABLE_SHADER()
-    which will generate some boilerplate code for us. Since our \c
-    State class has a compare function, we declare that the states can
-    be compared. It would have been possible to remove the \c
-    State::compare() function and instead declare the shader with \l
-    QSG_DECLARE_SIMPLE_SHADER(), but this could then reduce performance
-    in certain use cases.
-
-    The state struct is used as a template parameter to
-    automatically generate a \l QSGMaterialType for us, so it is
-    crucial that the pair of shader and state are made up of unique
-    classes. Using the same \c State class in multiple shaders will
-    will lead to undefined behavior.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 3
-
-    Next comes the declaration of the shader source code, where we
-    define a vertex and fragment shader. The simple material assumes
-    the presence of \c qt_Matrix in the vertex shader and \c
-    qt_Opacity in the fragment shader.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 4
-
-    We reimplement the \c attributes function to return the name of
-    the \c aVertex and \c aTexCoord attributes. These attributes
-    will be mapped to attribute indices 0 and 1 in the node's
-    geometry.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 6
-
-    Uniforms can be accessed either by name or by index, where index
-    is faster than name. We reimplement the \c resolveUniforms()
-    function to find the index of the \c color uniform. We do not have
-    to worry about resolving \c qt_Opacity or \c qt_Matrix as these
-    are handled by the baseclass.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 5
-
-    The \c updateState() function is called once for every unique
-    state and we use it to update the shader program with the current
-    color. The previous state is passed in as a second parameter so
-    that the user can update only that which has changed. In our
-    use case, where all the colors are different, the updateState()
-    function will be called once for every node.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 7
-
-    The \c ColorNode class is supposed to draw something, so it needs
-    to be a subclass of \l QSGGeometryNode.
-
-    Since our shader expects both a position and a texture coordinate,
-    we use the default attribute set \l
-    QSGGeometry::defaultAttributes_TexturedPoint2D() and declare that
-    the geometry consists of a total of four vertices. To avoid the
-    allocation, we make the QSGGeometry a member of the
-    QSGGeometryNode.
-
-    When we used the macro \l QSG_DECLARE_SIMPLE_COMPARABLE_SHADER() above,
-    it defined the \c createMaterial() function which we use to
-    instantiate materials for our \c State struct.
-
-    As we will be making use of opacity in our custom material, we
-    need to set the \l QSGMaterial::Blending flag. The scene graph may
-    use this flag to either disable or enable \c GL_BLEND when drawing
-    the node or to reorder the drawing of the node.
-
-    Finally, we tell the node to take ownership of the material, so we
-    do not have to explicitly memory-manage it.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.h 8
-
-    Since the Item is providing its own graphics to the scene graph,
-    we set the flag \l QQuickItem::ItemHasContents. We also make sure
-    the item is exposed to QML by adding the QML_ELEMENT macro.
-
-    \snippet scenegraph/simplematerial/simplematerialitem.cpp 9
-
-    Whenever the Item has changed graphically, the \l
-    QQuickItem::updatePaintNode() function is called.
-
-    \note The scene graph may be rendered in a different thread than the
-    GUI thread and \l QQuickItem::updatePaintNode() is one of the few
-    places where it is safe to access properties of the QML
-    object. Any interaction with the scene graph from a custom \l
-    QQuickItem should be contained within this function. The function is
-    called on the rendering thread while the GUI thread is blocked.
-
-    The first time this function is called for an \c Item instance,
-    the node will be 0, and so we create a new one. For every consecutive
-    call, the node will be what we returned previously. There are
-    scenarios where the scene graph will be removed and rebuilt from
-    scratch however, so one should always check the node and recreate
-    it if required.
-
-    Once we have a \c ColorNode, we update its geometry and material
-    state. Finally, we notify the scene graph that the node has
-    undergone changes to its geometry and material.
-
-    \snippet scenegraph/simplematerial/simplematerial.cpp 11
-
-    The \c main() function of the application opens up a \l QQuickView
-    with our QML file.
-
-    \snippet scenegraph/simplematerial/main.qml 1
-
-    In the QML file, we import our custom type so we can instantiate
-    it.
-
-    \snippet scenegraph/simplematerial/main.qml 2
-
-    Then we create a column containing three instances of our custom item,
-    each with a different color.
-
-    \snippet scenegraph/simplematerial/main.qml 3
-
-    And finally we overlay a short descriptive text.
-
- */
diff --git a/examples/quick/scenegraph/simplematerial/main.qml b/examples/quick/scenegraph/simplematerial/main.qml
deleted file mode 100644
index 98d0e92940..0000000000
--- a/examples/quick/scenegraph/simplematerial/main.qml
+++ /dev/null
@@ -1,107 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-//! [1]
-import QtQuick 2.0
-import SimpleMaterial 1.0
-
-Rectangle {
-    width: 320
-    height: 480
-    color: "black"
-
-//! [1] //! [2]
-
-    Column {
-        anchors.fill: parent
-
-        SimpleMaterialItem {
-            width: parent.width;
-            height: parent.height / 3;
-            color: "steelblue"
-        }
-
-        SimpleMaterialItem {
-            width: parent.width;
-            height: parent.height / 3;
-            color: "darkorchid"
-        }
-
-         SimpleMaterialItem {
-            width: parent.width;
-            height: parent.height / 3;
-            color: "springgreen"
-        }
-    }
-
-
-//! [2] //! [3]
-    Rectangle {
-        color: Qt.rgba(0, 0, 0, 0.8)
-        radius: 10
-        antialiasing: true
-        border.width: 1
-        border.color: "black"
-        anchors.fill: label
-        anchors.margins: -10
-    }
-
-    Text {
-        id: label
-        color: "white"
-        wrapMode: Text.WordWrap
-        text: "These three gradient boxes are colorized using a custom material."
-        anchors.right: parent.right
-        anchors.left: parent.left
-        anchors.bottom: parent.bottom
-        anchors.margins: 20
-    }
-}
-//! [3]
diff --git a/examples/quick/scenegraph/simplematerial/simplematerial.cpp b/examples/quick/scenegraph/simplematerial/simplematerial.cpp
deleted file mode 100644
index 35866bd6d0..0000000000
--- a/examples/quick/scenegraph/simplematerial/simplematerial.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <qguiapplication.h>
-#include <qquickview.h>
-
-//! [11]
-int main(int argc, char **argv)
-{
-    QGuiApplication app(argc, argv);
-
-    QQuickView view;
-    view.setResizeMode(QQuickView::SizeRootObjectToView);
-    view.setSource(QUrl("qrc:///scenegraph/simplematerial/main.qml"));
-    view.show();
-
-    return app.exec();
-}
-//! [11]
diff --git a/examples/quick/scenegraph/simplematerial/simplematerial.pro b/examples/quick/scenegraph/simplematerial/simplematerial.pro
deleted file mode 100644
index 131af45974..0000000000
--- a/examples/quick/scenegraph/simplematerial/simplematerial.pro
+++ /dev/null
@@ -1,20 +0,0 @@
-
-QT += quick
-
-CONFIG += qmltypes
-QML_IMPORT_NAME = SimpleMaterial
-QML_IMPORT_MAJOR_VERSION = 1
-
-SOURCES += \
-    simplematerial.cpp \
-    simplematerialitem.cpp
-RESOURCES += simplematerial.qrc
-
-target.path = $$[QT_INSTALL_EXAMPLES]/quick/scenegraph/simplematerial
-qml.files = main.qml
-qml.path = $$[QT_INSTALL_EXAMPLES]/quick/scenegraph/simplematerial
-
-INSTALLS += target qml
-
-HEADERS += \
-    simplematerialitem.h
diff --git a/examples/quick/scenegraph/simplematerial/simplematerial.qrc b/examples/quick/scenegraph/simplematerial/simplematerial.qrc
deleted file mode 100644
index 4cc1eaafe4..0000000000
--- a/examples/quick/scenegraph/simplematerial/simplematerial.qrc
+++ /dev/null
@@ -1,5 +0,0 @@
-<RCC>
-    <qresource prefix="/scenegraph/simplematerial">
-        <file>main.qml</file>
-    </qresource>
-</RCC>
diff --git a/examples/quick/scenegraph/simplematerial/simplematerialitem.cpp b/examples/quick/scenegraph/simplematerial/simplematerialitem.cpp
deleted file mode 100644
index c4c7b2e07e..0000000000
--- a/examples/quick/scenegraph/simplematerial/simplematerialitem.cpp
+++ /dev/null
@@ -1,169 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "simplematerialitem.h"
-
-#include <QtQuick/qsgsimplematerial.h>
-#include <QtQuick/qsggeometry.h>
-#include <QtQuick/qsgnode.h>
-
-//! [1]
-struct State
-{
-    QColor color;
-
-    int compare(const State *other) const {
-        uint rgb = color.rgba();
-        uint otherRgb = other->color.rgba();
-
-        if (rgb == otherRgb) {
-            return 0;
-        } else if (rgb < otherRgb) {
-            return -1;
-        } else {
-            return 1;
-        }
-    }
-};
-//! [1]
-
-//! [2]
-class Shader : public QSGSimpleMaterialShader<State>
-{
-    QSG_DECLARE_SIMPLE_COMPARABLE_SHADER(Shader, State);
-//! [2] //! [3]
-public:
-
-    const char *vertexShader() const override {
-        return
-                "attribute highp vec4 aVertex;                              \n"
-                "attribute highp vec2 aTexCoord;                            \n"
-                "uniform highp mat4 qt_Matrix;                              \n"
-                "varying highp vec2 texCoord;                               \n"
-                "void main() {                                              \n"
-                "    gl_Position = qt_Matrix * aVertex;                     \n"
-                "    texCoord = aTexCoord;                                  \n"
-                "}";
-    }
-
-    const char *fragmentShader() const override {
-        return
-                "uniform lowp float qt_Opacity;                             \n"
-                "uniform lowp vec4 color;                                   \n"
-                "varying highp vec2 texCoord;                               \n"
-                "void main ()                                               \n"
-                "{                                                          \n"
-                "    gl_FragColor = texCoord.y * texCoord.x * color * qt_Opacity;  \n"
-                "}";
-    }
-//! [3] //! [4]
-    QList<QByteArray> attributes() const override
-    {
-        return QList<QByteArray>() << "aVertex" << "aTexCoord";
-    }
-//! [4] //! [5]
-    void updateState(const State *state, const State *) override
-    {
-        program()->setUniformValue(id_color, state->color);
-    }
-//! [5] //! [6]
-    void resolveUniforms() override
-    {
-        id_color = program()->uniformLocation("color");
-    }
-
-private:
-    int id_color;
-//! [6]
-};
-
-
-//! [7]
-class ColorNode : public QSGGeometryNode
-{
-public:
-    ColorNode()
-        : m_geometry(QSGGeometry::defaultAttributes_TexturedPoint2D(), 4)
-    {
-        setGeometry(&m_geometry);
-
-        QSGSimpleMaterial<State> *material = Shader::createMaterial();
-        material->setFlag(QSGMaterial::Blending);
-        setMaterial(material);
-        setFlag(OwnsMaterial);
-    }
-
-    QSGGeometry m_geometry;
-};
-//! [7]
-
-void SimpleMaterialItem::setColor(const QColor &color) {
-    if (m_color != color) {
-        m_color = color;
-        emit colorChanged();
-        update();
-    }
-}
-
-//! [9]
-QSGNode *SimpleMaterialItem::updatePaintNode(QSGNode *node, QQuickItem::UpdatePaintNodeData *)
-{
-    ColorNode *n = static_cast<ColorNode *>(node);
-    if (!node)
-        n = new ColorNode();
-
-    QSGGeometry::updateTexturedRectGeometry(n->geometry(), boundingRect(), QRectF(0, 0, 1, 1));
-    static_cast<QSGSimpleMaterial<State>*>(n->material())->state()->color = m_color;
-
-    n->markDirty(QSGNode::DirtyGeometry | QSGNode::DirtyMaterial);
-
-    return n;
-}
-//! [9]
diff --git a/examples/quick/scenegraph/simplematerial/simplematerialitem.h b/examples/quick/scenegraph/simplematerial/simplematerialitem.h
deleted file mode 100644
index 5775ad097b..0000000000
--- a/examples/quick/scenegraph/simplematerial/simplematerialitem.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2016 The Qt Company Ltd.
-** Contact: https://www.qt.io/licensing/
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:BSD$
-** Commercial License Usage
-** Licensees holding valid commercial Qt licenses may use this file in
-** accordance with the commercial license agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and The Qt Company. For licensing terms
-** and conditions see https://www.qt.io/terms-conditions. For further
-** information use the contact form at https://www.qt.io/contact-us.
-**
-** BSD License Usage
-** Alternatively, you may use this file under the terms of the BSD license
-** as follows:
-**
-** "Redistribution and use in source and binary forms, with or without
-** modification, are permitted provided that the following conditions are
-** met:
-**   * Redistributions of source code must retain the above copyright
-**     notice, this list of conditions and the following disclaimer.
-**   * Redistributions in binary form must reproduce the above copyright
-**     notice, this list of conditions and the following disclaimer in
-**     the documentation and/or other materials provided with the
-**     distribution.
-**   * Neither the name of The Qt Company Ltd nor the names of its
-**     contributors may be used to endorse or promote products derived
-**     from this software without specific prior written permission.
-**
-**
-** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#ifndef SIMPLEMATERIALITEM_H
-#define SIMPLEMATERIALITEM_H
-
-#include <QtQuick/qquickitem.h>
-
-//! [8]
-class SimpleMaterialItem : public QQuickItem
-{
-    Q_OBJECT
-
-    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
-    QML_ELEMENT
-
-public:
-
-    SimpleMaterialItem() { setFlag(ItemHasContents, true); }
-
-    void setColor(const QColor &color);
-    QColor color() const { return m_color; }
-
-signals:
-    void colorChanged();
-
-private:
-  QColor m_color;
-
-public:
-    QSGNode *updatePaintNode(QSGNode *node, UpdatePaintNodeData *) override;
-};
-//! [8]
-
-#endif // SIMPLEMATERIALITEM_H