[Interest] why do I don't see my 3d mesh ?

[jagernicolas at legtux.org]

Hi, 

I failed to load a 3d object with the following code: 

**- main.cpp**

 #include <QGuiApplication>
 #include <QQmlApplicationEngine>

 int main(int argc, char *argv[])
 {
 QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);

 QGuiApplication app(argc, argv);

 QQmlApplicationEngine engine;
 engine.load(QUrl(QStringLiteral("qrc:/main.qml")));
 if (engine.rootObjects().isEmpty())
 return -1;

 return app.exec();
 }

**- main.qml**

 import QtQuick.Window 2.2
 import QtQuick.Controls 2.2
 import QtQuick.Dialogs 1.2

 import QtQuick.Scene3D 2.0

 import Qt3D.Core 2.0
 import Qt3D.Render 2.0
 import Qt3D.Input 2.0
 import Qt3D.Extras 2.0

 import QtQuick.Layouts 1.3

 ApplicationWindow
 {
 visible: true
 width: 640
 height: 480
 title: qsTr("3D Viewer")

 header: ToolBar
 {
 RowLayout
 {
 anchors.fill: parent
 ToolButton
 {
 id: exitBtn
 text: "Exit"
 onPressed:
 {
 Qt.quit()
 }
 }
 ToolButton
 {
 id: loadModelBtn
 text: "Load Model"
 onPressed:
 {
 fileDialog.open()
 }
 }
 }
 }

 FileDialog
 {
 id: fileDialog
 onAccepted:
 {
 mesh.source = fileDialog.fileUrl
 }
 }

 Scene3D
 {
 anchors.fill: parent

 aspects: ["input", "logic"]
 cameraAspectRatioMode: Scene3D.AutomaticAspectRatio

 Entity
 {
 id: sceneRoot

 Camera
 {
 id: camera
 projectionType: CameraLens.PerspectiveProjection
 fieldOfView: 30
 aspectRatio: 16/9
 nearPlane : 0.1
 farPlane : 1000.0
 position: Qt.vector3d( 20.0, 0.0, 0.0 )
 upVector: Qt.vector3d( 0.0, 1.0, 0.0 )
 viewCenter: Qt.vector3d( 0.0, 0.0, 0.0 )
 }

 OrbitCameraController
 {
 camera: camera
 }

 components: [
 RenderSettings
 {
 activeFrameGraph: ForwardRenderer
 {
 clearColor: Qt.rgba(0, 0.5, 1, 1)
 camera: camera
 }
 },
 InputSettings
 {
 }
 ]

 Entity {
 components: [
 Mesh {
 id: mesh
 },
 Material {
 id: material
 parameters: [
 Parameter { name: "color"; value: "green" }
 ]
 }
 ]
 }

 }
 }
 }

I paste the whole code but hen I changed the word `Mesh` for
`SceneLoader` I can load my obj file without problem. I guess there is
something I miss in the case of the `mesh`. 

nb : I can upload the whole project if required. 

regards, 

// Nicolas Jäger 
 
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