Add dynamic loading example

Add example for deferred loading of images and subpresentations.

Task-number: QT3DS-3941
Change-Id: Ica8a38238141f5aff92b09d1f953e3cb58d1109a
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>

20 files changed, 534 insertions, 1 deletions

diff --git a/examples/studio3d/dynamicloading/StartupProgress.qml b/examples/studio3d/dynamicloading/StartupProgress.qml
new file mode 100644
index 0000000..c845588
--- /dev/null
+++ b/examples/studio3d/dynamicloading/StartupProgress.qml
@@ -0,0 +1,77 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick.Controls 2.5
+import QtQuick 2.12
+
+Rectangle {
+    width: 180
+    height: 60
+    radius: 16
+    anchors.centerIn: parent
+    color: "white"
+    antialiasing: true
+    property alias progressEnabled: progressBar.enabled
+    property alias textColor: text.color
+    Text {
+        id: text
+        anchors.centerIn: parent
+        text: "Loading presentation..."
+        color: "black"
+
+    }
+    ProgressBar {
+        id: progressBar
+        anchors.left: text.left
+        anchors.top: text.bottom
+        width: text.width
+        indeterminate: true
+    }
+}
diff --git a/examples/studio3d/dynamicloading/doc/src/dynamicloading.qdoc b/examples/studio3d/dynamicloading/doc/src/dynamicloading.qdoc
new file mode 100644
index 0000000..20af763
--- /dev/null
+++ b/examples/studio3d/dynamicloading/doc/src/dynamicloading.qdoc
@@ -0,0 +1,46 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:FDL$
+** 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 dynamicloading
+    \title Qt 3D Studio Runtime: Dynamic Loading Example
+    \ingroup OpenGLRuntime-examples-qml
+    \brief Demonstrates how resources can be loaded dynamically.
+
+    \e {This example demonstrates deferred loading.}
+
+    \include examples-run.qdocinc
+
+    \section1 Description
+
+    The presentation consists of three slides with images, effect, subpresentation and
+    custom material. Images and subpresentation are loaded dynamically before entering
+    the slide using the \l{Presentation::preloadSlide}{preloadSlide} function and unloaded
+    when exiting a slide using the \l{Presentation::unloadSlide}{unloadSlide} function.
+
+    \snippet dynamicloading/main.qml 1
+*/
diff --git a/examples/studio3d/dynamicloading/dynamicloading.pro b/examples/studio3d/dynamicloading/dynamicloading.pro
new file mode 100644
index 0000000..af8ed76
--- /dev/null
+++ b/examples/studio3d/dynamicloading/dynamicloading.pro
@@ -0,0 +1,26 @@
+TEMPLATE = app
+
+QT += quick widgets qml studio3d
+CONFIG += c++11
+
+# The following define makes your compiler emit warnings if you use
+# any Qt feature that has been marked deprecated (the exact warnings
+# depend on your compiler). Refer to the documentation for the
+# deprecated API to know how to port your code away from it.
+DEFINES += QT_DEPRECATED_WARNINGS
+
+# You can also make your code fail to compile if it uses deprecated APIs.
+# In order to do so, uncomment the following line.
+# You can also select to disable deprecated APIs only up to a certain version of Qt.
+#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000    # disables all the APIs deprecated before Qt 6.0.0
+
+SOURCES += \
+        main.cpp
+
+RESOURCES += qml.qrc
+
+target.path = $$[QT_INSTALL_EXAMPLES]/studio3d/$$TARGET
+INSTALLS += target
+
+OTHER_FILES += \
+    doc/src/dynamicloading.qdoc
diff --git a/examples/studio3d/dynamicloading/main.cpp b/examples/studio3d/dynamicloading/main.cpp
new file mode 100644
index 0000000..4894be7
--- /dev/null
+++ b/examples/studio3d/dynamicloading/main.cpp
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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 <QtWidgets/QApplication>
+#include <QtQuick/QQuickView>
+#include <qstudio3dglobal.h>
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+
+    QSurfaceFormat::setDefaultFormat(Q3DS::surfaceFormat());
+
+    QQuickView viewer;
+    viewer.setSource(QUrl("qrc:/main.qml"));
+    viewer.setTitle(QStringLiteral("Qt 3D Studio Example"));
+    viewer.setResizeMode(QQuickView::SizeRootObjectToView);
+    viewer.resize(1680, 1050);
+    viewer.show();
+    return app.exec();
+}
diff --git a/examples/studio3d/dynamicloading/main.qml b/examples/studio3d/dynamicloading/main.qml
new file mode 100644
index 0000000..daa8a94
--- /dev/null
+++ b/examples/studio3d/dynamicloading/main.qml
@@ -0,0 +1,99 @@
+/****************************************************************************
+**
+** Copyright (C) 2019 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt 3D Studio.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import QtQuick 2.12
+import QtStudio3D.OpenGL 2.4
+
+Item {
+    id: mainview
+    anchors.fill: parent
+    visible: true
+
+    StartupProgress {
+        id: progress
+    }
+    Studio3D {
+        id: studio3D
+        anchors.fill: parent
+        asyncInit: true
+
+        ViewerSettings {
+            showRenderStats: false
+            scaleMode: ViewerSettings.ScaleModeCenter
+        }
+        //![1]
+        Presentation {
+            property string slidePath: "dynamicloading:Scene:Slide"
+            property int curSlideIndex: 1
+            property int maxSlideIndex: 3
+
+            id: presentation
+            delayedLoading: true
+            source: "qrc:/presentation/dynamicloading.uia"
+
+            onSlideEntered: {
+                console.log("Entered: " + name)
+
+                curSlideIndex = index + 1
+                if (curSlideIndex > maxSlideIndex)
+                    curSlideIndex = 1
+                console.log("preloadSlide: " + slidePath + curSlideIndex)
+                preloadSlide(slidePath + curSlideIndex)
+            }
+
+            onSlideExited: {
+                console.log("Exited: " + name)
+                unloadSlide(name)
+            }
+        }
+        //![1]
+        onPresentationReady: progress.visible = false
+    }
+}
diff --git a/examples/studio3d/dynamicloading/presentation/dynamicloading.uia b/examples/studio3d/dynamicloading/presentation/dynamicloading.uia
new file mode 100644
index 0000000..733f47d
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/dynamicloading.uia
@@ -0,0 +1,7 @@
+<?xml version='1.0' encoding='utf-8'?>
+<application xmlns="http://qt.io/qt3dstudio/uia">
+    <assets initial="dynamicloading">
+        <presentation id="dynamicloading" src="presentations/dynamicloading.uip"/>
+        <presentation id="subpres" src="presentations/subpres.uip"/>
+    </assets>
+</application>
diff --git a/examples/studio3d/dynamicloading/presentation/effects/FullScreenTextureOverlay.effect b/examples/studio3d/dynamicloading/presentation/effects/FullScreenTextureOverlay.effect
new file mode 100644
index 0000000..8cfde54
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/effects/FullScreenTextureOverlay.effect
@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<Effect>
+    <MetaData>
+        <Property name="Overlay" formalName="Overlay Texture" description="Overlay texture" type="Texture" clamp="repeat" />
+        <Property name="overlay_repeat" formalName="Repeat" min="0" max="50" default="1" description="Times to repeat the image over screen."/>
+        <Property name="alpha" formalName="Alpha" min="0" max="1" default="0.5" description="Overlay blend factor"/>
+    </MetaData>
+    <Shaders>
+        <Shared></Shared>
+        <FragmentShaderShared></FragmentShaderShared>
+        <Shader name="main">
+            <VertexShader></VertexShader>
+            <FragmentShader><![CDATA[
+void frag()
+{
+    vec4 origColor = texture2D_0(TexCoord);
+    vec4 smp = texture(Overlay, TexCoord.xy * overlay_repeat);
+    gl_FragColor = alpha * smp + origColor;
+}
+    ]]></FragmentShader>
+        </Shader>
+    </Shaders>
+    <Passes>
+        <Pass shader="main" input="[source]" output="[dest]"/>
+    </Passes>
+</Effect>
+
+
diff --git a/examples/studio3d/dynamicloading/presentation/fonts/TitilliumWeb-Regular.ttf b/examples/studio3d/dynamicloading/presentation/fonts/TitilliumWeb-Regular.ttf
new file mode 100644
index 0000000..6da8219
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/fonts/TitilliumWeb-Regular.ttf
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Abstract_001_COLOR.jpg b/examples/studio3d/dynamicloading/presentation/maps/Abstract_001_COLOR.jpg
new file mode 100644
index 0000000..97c5df3
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Abstract_001_COLOR.jpg
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Blue_Marble_002_COLOR.jpg b/examples/studio3d/dynamicloading/presentation/maps/Blue_Marble_002_COLOR.jpg
new file mode 100644
index 0000000..1fab91a
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Blue_Marble_002_COLOR.jpg
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Ice_002_COLOR.jpg b/examples/studio3d/dynamicloading/presentation/maps/Ice_002_COLOR.jpg
new file mode 100644
index 0000000..0e69b27
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Ice_002_COLOR.jpg
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Metal_Streaks.png b/examples/studio3d/dynamicloading/presentation/maps/Metal_Streaks.png
new file mode 100644
index 0000000..f2a6d49
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Metal_Streaks.png
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Moon_001_COLOR.jpg b/examples/studio3d/dynamicloading/presentation/maps/Moon_001_COLOR.jpg
new file mode 100644
index 0000000..3fd374c
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Moon_001_COLOR.jpg
diff --git a/examples/studio3d/dynamicloading/presentation/maps/Rock_023_COLOR2.jpg b/examples/studio3d/dynamicloading/presentation/maps/Rock_023_COLOR2.jpg
new file mode 100644
index 0000000..39214f9
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/Rock_023_COLOR2.jpg
diff --git a/examples/studio3d/dynamicloading/presentation/maps/license.txt b/examples/studio3d/dynamicloading/presentation/maps/license.txt
new file mode 100644
index 0000000..62a06f7
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/maps/license.txt
@@ -0,0 +1,2 @@
+https://3dtextures.me/ distributed under the terms of
+https://creativecommons.org/publicdomain/zero/1.0/
diff --git a/examples/studio3d/dynamicloading/presentation/materials/simplecustom.material b/examples/studio3d/dynamicloading/presentation/materials/simplecustom.material
new file mode 100644
index 0000000..51878d2
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/materials/simplecustom.material
@@ -0,0 +1,39 @@
+<Material name="simplecustom" version="1.0">
+    <MetaData >
+        <Property formalName="Red" name="red_weight" type="Float" default="1.0" min="0" max="2.0" category="Material"/>
+        <Property formalName="Green" name="green_weight" type="Float" default="1.0" min="0" max="2.0" category="Material"/>
+        <Property formalName="Blue" name="blue_weight" type="Float" default="1.0" min="0" max="2.0" category="Material"/>
+        <Property formalName="Base Color" name="basecolor" type="Texture" filter="linear" minfilter="linearMipmapLinear" clamp="repeat" category="Material"/>
+    </MetaData>
+    <Shaders type="GLSL" version="330">
+        <Shader>
+            <Shared></Shared>
+            <VertexShader>
+            </VertexShader>
+            <FragmentShader>
+#define QT3DS_ENABLE_UV0 1
+#define QT3DS_ENABLE_WORLD_POSITION 1
+#define QT3DS_ENABLE_TEXTAN 0
+#define QT3DS_ENABLE_BINORMAL 0
+
+#include "vertexFragmentBase.glsllib"
+
+// set shader output
+out vec4 fragColor;
+
+void main()
+{
+    vec4 c = texture(basecolor, varTexCoord0.xy);
+    c.rgb *= vec3(red_weight, green_weight, blue_weight);
+    fragColor = c;
+}
+            </FragmentShader>
+        </Shader>
+    </Shaders>
+    <Passes>
+        <ShaderKey value="7"/>
+        <LayerKey count="1"/>
+        <Pass>
+        </Pass>
+    </Passes>
+</Material>
diff --git a/examples/studio3d/dynamicloading/presentation/presentations/dynamicloading.uip b/examples/studio3d/dynamicloading/presentation/presentations/dynamicloading.uip
new file mode 100644
index 0000000..bcde630
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/presentations/dynamicloading.uip
@@ -0,0 +1,86 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<UIP version="6" >
+	<Project >
+		<ProjectSettings author="" company="" presentationWidth="1920" presentationHeight="1080" maintainAspect="False" preferKtx="False" >
+			<CustomColors count="16" >#989898 #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff</CustomColors>
+		</ProjectSettings>
+		<Classes >
+			<Effect id="FullScreenTextureOverlay_u46878" name="FullScreenTextureOverlay" sourcepath="../effects/FullScreenTextureOverlay.effect" />
+			<CustomMaterial id="simplecustom_u34209" name="simplecustom" sourcepath="../materials/simplecustom.material" />
+		</Classes>
+		<Graph >
+			<Scene id="Scene_u58399" backgroundcolor="0.596078 0.596078 0.596078 1" bgcolorenable="True" >
+				<Layer id="Layer2_u19717" variants="" >
+					<Camera id="Camera_u13977" />
+					<Light id="Light_u36115" />
+				</Layer>
+				<Layer id="Layer_u59613" variants="" >
+					<Effect id="FullScreenTextureOverlay_u35802" class="#FullScreenTextureOverlay_u46878" />
+					<Model id="Cone_u21790" variants="" >
+						<Material id="Default_u13810" >
+							<Image id="Default_u13810_u63711" />
+						</Material>
+					</Model>
+					<Camera id="Camera_u44253" />
+					<Light id="Light_u28004" />
+					<Model id="Cylinder_u21298" variants="" >
+						<Material id="Default_u37173" >
+							<Image id="Default_u37173_u19494" />
+						</Material>
+					</Model>
+					<Model id="Sphere_u7999" variants="" >
+						<Material id="Default_u28670" >
+							<Image id="Default_u28670_u18741" />
+						</Material>
+					</Model>
+					<Model id="Rectangle_u65276" variants="" >
+						<CustomMaterial id="Default_u12553" name="Default" class="#simplecustom_u34209" />
+					</Model>
+				</Layer>
+			</Scene>
+		</Graph>
+		<Logic >
+			<State name="Master Slide" component="#Scene_u58399" >
+				<Add ref="#Layer_u59613" background="Transparent" backgroundcolor="0.596078 0.596078 0.596078 0.490196" disabledepthprepass="True" />
+				<Add ref="#Camera_u44253" />
+				<Add ref="#Light_u28004" />
+				<State id="Slide1_u5883" name="Slide1" playmode="Play Through To..." >
+					<Set ref="#Layer_u59613" endtime="2000" />
+					<Set ref="#Camera_u44253" endtime="2000" />
+					<Set ref="#Light_u28004" endtime="2000" />
+					<Add ref="#FullScreenTextureOverlay_u35802" name="FullScreenTextureOverlay" Overlay="../maps/Metal_Streaks.png" alpha="0.19" endtime="2000" overlay_repeat="1" >
+						<AnimationTrack property="alpha" type="EaseInOut" >0 0.01 100 100 0.616 0.26 100 100 2 0.09 100 100</AnimationTrack>
+					</Add>
+					<Add ref="#Cylinder_u21298" name="Cylinder" endtime="2000" scale="3 4 1" sourcepath="#Cylinder" />
+					<Add ref="#Default_u37173" name="Default_animatable" blendmode="Normal" bumpamount="0.5" diffuse="1 1 1 1" diffuselightwrap="0" diffusemap="#Default_u37173_u19494" displaceamount="20" emissivecolor="1 1 1 1" emissivepower="0" fresnelPower="0" importfile="" importid="" ior="1.5" opacity="100" shaderlighting="Pixel" sourcepath="" specularamount="0" specularmodel="Default" specularroughness="0" speculartint="1 1 1 1" translucentfalloff="1" type="Material" vertexcolors="False" />
+					<Add ref="#Default_u37173_u19494" sourcepath="../maps/Abstract_001_COLOR.jpg" subpresentation="" />
+				</State>
+				<State id="Scene-Slide2_u11666" name="Slide2" playmode="Play Through To..." playthroughto="Next" >
+					<Set ref="#Layer_u59613" endtime="2000" />
+					<Set ref="#Camera_u44253" endtime="2000" />
+					<Set ref="#Light_u28004" endtime="2000" />
+					<Add ref="#Layer2_u19717" name="Layer2" disabledepthprepass="False" endtime="2000" height="766" heightunits="pixels" sourcepath="subpres" top="29" width="1920" widthunits="pixels" />
+					<Add ref="#Camera_u13977" endtime="2000" />
+					<Add ref="#Light_u36115" endtime="2000" />
+					<Add ref="#Cone_u21790" name="Cone" endtime="2000" position="-351.477 228.116 -4.69186" rotation="265 0 0" scale="2 2 2" sourcepath="#Cone" />
+					<Add ref="#Default_u13810" name="Default_animatable" blendmode="Normal" bumpamount="0.5" diffuse="1 1 1 1" diffuselightwrap="0" diffusemap="#Default_u13810_u63711" displaceamount="20" emissivecolor="1 1 1 1" emissivepower="0" fresnelPower="0" importfile="" importid="" ior="1.5" opacity="100" shaderlighting="Pixel" sourcepath="" specularamount="0" specularmodel="Default" specularroughness="0" speculartint="1 1 1 1" translucentfalloff="1" type="Material" vertexcolors="False" />
+					<Add ref="#Default_u13810_u63711" sourcepath="../maps/Blue_Marble_002_COLOR.jpg" subpresentation="" />
+					<Add ref="#Sphere_u7999" name="Sphere" endtime="2000" position="204.727 229.668 0" scale="3 3 3" sourcepath="#Sphere" />
+					<Add ref="#Default_u28670" name="Default_animatable" blendmode="Normal" bumpamount="0.5" diffuse="1 1 1 1" diffuselightwrap="0" diffusemap="#Default_u28670_u18741" displaceamount="20" emissivecolor="1 1 1 1" emissivepower="0" fresnelPower="0" importfile="" importid="" ior="1.5" opacity="100" shaderlighting="Pixel" sourcepath="" specularamount="0" specularmodel="Default" specularroughness="0" speculartint="1 1 1 1" translucentfalloff="1" type="Material" vertexcolors="False" />
+					<Add ref="#Default_u28670_u18741" sourcepath="../maps/Ice_002_COLOR.jpg" subpresentation="" />
+				</State>
+				<State id="Slide7_u8989" name="Slide3" playmode="Play Through To..." playthroughto="#Slide1_u5883" >
+					<Set ref="#Layer_u59613" endtime="2000" />
+					<Set ref="#Camera_u44253" endtime="2000" />
+					<Set ref="#Light_u28004" endtime="2000" />
+					<Add ref="#Rectangle_u65276" name="Rectangle" endtime="2000" position="0 0 600" rotation="0 122 58" scale="8 8 8" shadowcaster="True" sourcepath="#Cube" />
+					<Add ref="#Default_u12553" name="Default" basecolor="../maps/Rock_023_COLOR2.jpg" blue_weight="0.5" green_weight="0.68" red_weight="1.16" >
+						<AnimationTrack property="blue_weight" type="EaseInOut" >0 1.08 100 100 1.016 1.58 100 100 2 1.68 100 100</AnimationTrack>
+						<AnimationTrack property="green_weight" type="EaseInOut" >0 1.22 100 100 1.016 1.7 100 100 2 1.28 100 100</AnimationTrack>
+						<AnimationTrack property="red_weight" type="EaseInOut" >0 0.42 100 100 1.016 1.12 100 100 2 0.72 100 100</AnimationTrack>
+					</Add>
+				</State>
+			</State>
+		</Logic>
+	</Project>
+</UIP>
diff --git a/examples/studio3d/dynamicloading/presentation/presentations/subpres.uip b/examples/studio3d/dynamicloading/presentation/presentations/subpres.uip
new file mode 100644
index 0000000..6b3d8d8
--- /dev/null
+++ b/examples/studio3d/dynamicloading/presentation/presentations/subpres.uip
@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<UIP version="6" >
+	<Project >
+		<ProjectSettings author="" company="" presentationWidth="1920" presentationHeight="766" maintainAspect="False" preferKtx="False" >
+			<CustomColors count="16" >#ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff #ffffff</CustomColors>
+		</ProjectSettings>
+		<Graph >
+			<Scene id="Scene_u37264" backgroundcolor="0.521569 0.521569 0.521569 1" >
+				<Layer id="Layer_u43190" variants="" >
+					<Camera id="Camera_u16495" />
+					<Light id="Light_u5451" />
+					<Text id="Text_u23736" variants="" />
+					<Model id="Rectangle_u54300" variants="" >
+						<Material id="Default_u22440" >
+							<Image id="Default_u22440_u62290" />
+						</Material>
+					</Model>
+				</Layer>
+			</Scene>
+		</Graph>
+		<Logic >
+			<State name="Master Slide" component="#Scene_u37264" >
+				<Add ref="#Layer_u43190" />
+				<Add ref="#Camera_u16495" />
+				<Add ref="#Light_u5451" />
+				<State id="Scene-Slide1_u45302" name="Slide1" >
+					<Add ref="#Text_u23736" name="Text" font="TitilliumWeb-Regular" position="-731.712 313.849 0" textstring="Subpresentation" />
+					<Add ref="#Rectangle_u54300" name="Rectangle" scale="8 8 1" sourcepath="#Rectangle" />
+					<Add ref="#Default_u22440" name="Default_animatable" blendmode="Normal" bumpamount="0.5" diffuse="1 1 1 1" diffuselightwrap="0" diffusemap="#Default_u22440_u62290" displaceamount="20" emissivecolor="1 1 1 1" emissivepower="0" fresnelPower="0" importfile="" importid="" ior="1.5" opacity="100" shaderlighting="Pixel" sourcepath="" specularamount="0" specularmodel="Default" specularroughness="0" speculartint="1 1 1 1" translucentfalloff="1" type="Material" vertexcolors="False" />
+					<Add ref="#Default_u22440_u62290" sourcepath="../maps/Moon_001_COLOR.jpg" subpresentation="" />
+				</State>
+			</State>
+		</Logic>
+	</Project>
+</UIP>
diff --git a/examples/studio3d/dynamicloading/qml.qrc b/examples/studio3d/dynamicloading/qml.qrc
new file mode 100644
index 0000000..b4de469
--- /dev/null
+++ b/examples/studio3d/dynamicloading/qml.qrc
@@ -0,0 +1,19 @@
+<RCC>
+    <qresource prefix="/">
+        <file>main.qml</file>
+        <file>StartupProgress.qml</file>
+        <file>presentation/effects/FullScreenTextureOverlay.effect</file>
+        <file>presentation/fonts/TitilliumWeb-Regular.ttf</file>
+        <file>presentation/maps/Abstract_001_COLOR.jpg</file>
+        <file>presentation/maps/Blue_Marble_002_COLOR.jpg</file>
+        <file>presentation/maps/Ice_002_COLOR.jpg</file>
+        <file>presentation/maps/license.txt</file>
+        <file>presentation/maps/Metal_Streaks.png</file>
+        <file>presentation/maps/Moon_001_COLOR.jpg</file>
+        <file>presentation/maps/Rock_023_COLOR2.jpg</file>
+        <file>presentation/materials/simplecustom.material</file>
+        <file>presentation/presentations/dynamicloading.uip</file>
+        <file>presentation/presentations/subpres.uip</file>
+        <file>presentation/dynamicloading.uia</file>
+    </qresource>
+</RCC>
diff --git a/examples/studio3d/studio3d.pro b/examples/studio3d/studio3d.pro
index 05213bd..4eb7780 100644
--- a/examples/studio3d/studio3d.pro
+++ b/examples/studio3d/studio3d.pro
@@ -6,5 +6,6 @@ SUBDIRS += \
 qtHaveModule(quick) {
     SUBDIRS += simpleqml \
                qmldatainput \
-               dynamicelement
+               dynamicelement \
+               dynamicloading
 }