QmlDesigner: Add extended View3D component

The source template for this component uses ExtendedSceneEnvironment
instead of regular SceneEnvironment.

Task-number: QDS-11811
Change-Id: Id310f74b619d502e29d580b08c38e7bda70a4361
Reviewed-by: Qt CI Patch Build Bot <ci_patchbuild_bot@qt.io>
Reviewed-by: Mahmoud Badri <mahmoud.badri@qt.io>

src/plugins/qmldesigner/qtquickplugin/qtquickplugin.qrc

@@ -45,6 +45,7 @@
         <file>source/textinputv2.qml</file>
         <file>source/component.qml</file>
         <file>source/component3d.qml</file>
+        <file>source/extendedview3D_template.qml</file>
         <file>images/column-positioner-icon.png</file>
         <file>images/column-positioner-icon-16px.png</file>
         <file>images/default-icon.png</file>

src/plugins/qmldesigner/qtquickplugin/quick.metainfo

@@ -850,4 +850,19 @@ MetaInfo {
             Property { name: "loadPrefix"; type: "string"; value: "lightmaps"; }
         }
     }
+
+    Type {
+        name: "QtQuick3D.View3D"
+        icon: ":/qtquickplugin/images/default3d16.png"
+
+        ItemLibraryEntry {
+            name: "Extended View3D"
+            category: "Items"
+            libraryIcon: ":/qtquickplugin/images/default3d.png"
+            version: "6.5"
+            requiredImport: "QtQuick3D"
+            QmlSource { source: ":/qtquickplugin/source/extendedview3D_template.qml" }
+            toolTip: qsTr("A 2D surface where a 3D scene can be rendered. Includes ExtendedSceneEnvironment.")
+        }
+    }
 }

src/plugins/qmldesigner/qtquickplugin/source/extendedview3D_template.qml

@@ -0,0 +1,39 @@
+// Copyright (C) 2024 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
+
+import QtQuick
+import QtQuick3D
+import QtQuick3D.Helpers
+
+View3D {
+    width: 400
+    height: 400
+    environment: sceneEnvironment
+
+    ExtendedSceneEnvironment {
+        id: sceneEnvironment
+        antialiasingMode: SceneEnvironment.MSAA
+        antialiasingQuality: SceneEnvironment.High
+    }
+
+    Node {
+        id: scene
+
+        DirectionalLight {
+            id: directionalLight
+        }
+
+        PerspectiveCamera {
+            id: sceneCamera
+            z: 350
+        }
+
+        Model {
+            id: cubeModel
+            eulerRotation.x: 30
+            eulerRotation.y: 45
+
+            source: "#Cube"
+        }
+    }
+}