bigscene-instanced-qml example demonstrating instancing

Change-Id: Ie556d85a837ebefbf1d6e053f7985bf791ffdcfb
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/examples/qt3d/bigscene-instanced-qml/main.qml b/examples/qt3d/bigscene-instanced-qml/main.qml
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+/****************************************************************************
+**
+** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+import Qt3D 2.0
+import Qt3D.Renderer 2.0
+import QtQuick 2.2 as QQ2
+
+Entity {
+    id: sceneRoot
+
+    Camera {
+        id: camera
+        projectionType: CameraLens.PerspectiveProjection
+        fieldOfView: 45
+        aspectRatio: 16/9
+        nearPlane : 0.1
+        farPlane : 1000.0
+        position: Qt.vector3d(0.0, -250.0, -50.0)
+        upVector: Qt.vector3d(0.0, 1.0, 0.0)
+        viewCenter: Qt.vector3d(0.0, 0.0, 0.0)
+    }
+
+    Configuration  {
+        controlledCamera: camera
+    }
+
+    components: [
+        FrameGraph {
+            activeFrameGraph: ForwardRenderer {
+                clearColor: Qt.rgba(0, 0.5, 1, 1)
+                camera: camera
+            }
+        }
+    ]
+
+    property real timeValue: 5
+
+    Material {
+        id: instancedPhongMaterial
+        effect: Effect {
+            techniques: Technique {
+                openGLFilter {
+                    api: OpenGLFilter.Desktop
+                    profile: OpenGLFilter.Core
+                    minorVersion: 2
+                    majorVersion: 3
+                }
+                renderPasses: RenderPass {
+                    shaderProgram: ShaderProgram {
+                        vertexShaderCode: loadSource("qrc:/instanced.vert")
+                        fragmentShaderCode: loadSource("qrc:/instanced.frag")
+                    }
+                }
+            }
+        }
+        parameters: Parameter { name: "instanceCount"; value: cylinderMeshInstanced.instanceCount }
+    }
+
+    CylinderMesh {
+        id: cylinderMeshInstanced
+        instanceCount: 2000
+        rings: 50
+        slices: 30
+        radius: 2.5
+        length: 5.0
+    }
+
+    Entity {
+        id: torusEntity
+        components: [ cylinderMeshInstanced, instancedPhongMaterial ]
+    }
+}