main.qml Example File

multiviewport/main.qml

  /****************************************************************************
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  ** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
  ** Contact: http://www.qt-project.org/legal
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  ** This file is part of the Qt3D module of the Qt Toolkit.
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  ** Alternatively, this file may be used under the terms of the GNU
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  import QtQuick 2.0
  import Qt3D.Core 2.0
  import Qt3D.Render 2.0

  Entity {
      id: rootNode
      components: [quadViewportFrameGraph]

      QuadViewportFrameGraph {
          id: quadViewportFrameGraph
          topLeftCamera: cameraSet.cameras[0]
          topRightCamera: cameraSet.cameras[1]
          bottomLeftCamera: cameraSet.cameras[2]
          bottomRightCamera: cameraSet.cameras[3]
      }

      Entity {
          id: cameraSet
          property var cameras: [camera1, camera2, camera3, camera4]

          Timer {
              running: true
              interval: 10000
              repeat: true
              property int count: 0
              onTriggered: {
                  quadViewportFrameGraph.topLeftCamera = cameraSet.cameras[count++ % 4];
                  quadViewportFrameGraph.topRightCamera = cameraSet.cameras[count % 4];
                  quadViewportFrameGraph.bottomLeftCamera = cameraSet.cameras[(count + 1) % 4];
                  quadViewportFrameGraph.bottomRightCamera = cameraSet.cameras[(count + 2) % 4];
              }
          }

          CameraLens {
              id : cameraLens
              projectionType: CameraLens.PerspectiveProjection
              fieldOfView: 45
              aspectRatio: 16/9
              nearPlane : 0.01
              farPlane : 1000.0
          }

          SimpleCamera {
              id: camera1
              lens: cameraLens
              position: Qt.vector3d( 0.0, 0.0, -20.0 )
          }

          SimpleCamera {
              id: camera2
              lens: cameraLens
              position: Qt.vector3d( 0.0, 0.0, 20.0 )
              viewCenter: Qt.vector3d( -3.0, 0.0, 10.0 )
          }

          SimpleCamera {
              id: camera3
              lens: cameraLens
              position: Qt.vector3d( 0.0, 30.0, 30.0 )
              viewCenter: Qt.vector3d( -5.0, -20.0, -10.0 )
          }

          SimpleCamera {
              id: camera4
              lens: cameraLens
              position: Qt.vector3d( 0.0, 15.0, 20.0 )
              viewCenter: Qt.vector3d( 0.0, -15.0, -20.0 )
          }
      }

      Entity {
          id: sceneRoot
          property real rotationAngle: 0

          SequentialAnimation {
              running: true
              loops: Animation.Infinite
              NumberAnimation { target: sceneRoot; property: "rotationAngle"; to: 360; duration: 2000; }
          }

          Entity {
              components: [
                  Transform {
                      rotation: fromAxisAndAngle(Qt.vector3d(0, 0, 1), -sceneRoot.rotationAngle)
                  },
                  SceneLoader {
                      source: "qrc:/assets/test_scene.dae"
                  }
              ]
          }
      } // sceneRoot
  } // rootNode