Qt Quick 3D - Lights Example


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  import QtQuick 2.14
  import QtQuick.Window 2.12
  import QtQuick3D 1.14

  Window {
      width: 1280
      height: 720
      visible: true
      title: qsTr("Lights Example")

      View3D {
          anchors.fill: parent

          environment: SceneEnvironment {
              clearColor: "#808080"
              backgroundMode: SceneEnvironment.Color
              multisampleAAMode: SceneEnvironment.X4
          }

          PerspectiveCamera {
              position: Qt.vector3d(0, 400, -600)
              rotation: Qt.vector3d(30, 0, 0)
              clipFar: 2000
          }

          DirectionalLight {
              id: light1
              color: Qt.rgba(1.0, 0.1, 0.1, 1.0)
              ambientColor: Qt.rgba(0.1, 0.1, 0.1, 1.0)
              position: Qt.vector3d(0, 200, 0)
              rotation: Qt.vector3d(135, 90, 0)
              shadowMapQuality: Light.ShadowMapQualityHigh
              visible: checkBox1.checked
              castsShadow: checkBoxShadows.checked
              brightness: slider1.sliderValue
              SequentialAnimation on rotation {
                  loops: Animation.Infinite
                  PropertyAnimation {
                      to: Qt.vector3d(45, 90, 0)
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
                  PropertyAnimation {
                      to: Qt.vector3d(135, 90, 0)
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
              }
          }

          PointLight {
              id: light2
              color: Qt.rgba(0.1, 1.0, 0.1, 1.0)
              ambientColor: Qt.rgba(0.1, 0.1, 0.1, 1.0)
              position: Qt.vector3d(0, 300, 0)
              shadowMapFar: 2000
              shadowMapQuality: Light.ShadowMapQualityHigh
              visible: checkBox2.checked
              castsShadow: checkBoxShadows.checked
              brightness: slider2.sliderValue
              SequentialAnimation on x {
                  loops: Animation.Infinite
                  NumberAnimation {
                      to: 400
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
                  NumberAnimation {
                      to: 0
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
              }
          }

          AreaLight {
              id: light3
              color: Qt.rgba(0.1, 0.1, 1.0, 1.0)
              ambientColor: Qt.rgba(0.1, 0.1, 0.1, 1.0)
              position: Qt.vector3d(-50, 250, -150)
              rotation: Qt.vector3d(90, 0, 0)
              width: 1000
              height: 200
              shadowMapFar: 2000
              shadowMapQuality: Light.ShadowMapQualityHigh
              visible: checkBox3.checked
              castsShadow: checkBoxShadows.checked
              brightness: slider3.sliderValue
              SequentialAnimation on z {
                  loops: Animation.Infinite
                  NumberAnimation {
                      to: 150
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
                  NumberAnimation {
                      to: -150
                      duration: 2000
                      easing.type: Easing.InOutQuad
                  }
              }
          }

          Model {
              source: "#Rectangle"
              y: -200
              scale: Qt.vector3d(15, 15, 15)
              rotation: Qt.vector3d(90, 0, 0)
              materials: [
                  DefaultMaterial {
                      diffuseColor: Qt.rgba(0.8, 0.6, 0.4, 1.0)
                  }
              ]
          }
          Model {
              source: "#Rectangle"
              z: 400
              scale: Qt.vector3d(15, 15, 15)
              materials: [
                  DefaultMaterial {
                      diffuseColor: Qt.rgba(0.8, 0.8, 0.9, 1.0)
                  }
              ]
          }

          Model {
              source: "teapot.mesh"
              y: -100
              scale: Qt.vector3d(75, 75, 75)
              materials: [
                  DefaultMaterial {
                      diffuseColor: Qt.rgba(0.9, 0.9, 0.9, 1.0)
                  }
              ]

              NumberAnimation  on rotation.y {
                  loops: Animation.Infinite
                  duration: 5000
                  from: 0
                  to: 360
              }
          }

          Model {
              source: "#Cube"
              position: light1.position
              rotation: light1.rotation
              property real size: slider1.highlight ? 0.2 : 0.1
              scale: Qt.vector3d(size, size, size)
              materials: [
                  DefaultMaterial {
                      diffuseColor: light1.color
                      opacity: 0.4
                  }
              ]
          }
          Model {
              source: "#Cube"
              position: light2.position
              rotation: light2.rotation
              property real size: slider2.highlight ? 0.2 : 0.1
              scale: Qt.vector3d(size, size, size)
              materials: [
                  DefaultMaterial {
                      diffuseColor: light2.color
                      opacity: 0.4
                  }
              ]
          }
          Model {
              source: "#Cube"
              position: light3.position
              rotation: light3.rotation
              property real size: slider3.highlight ? 0.2 : 0.1
              scale: Qt.vector3d(size, size, size)
              materials: [
                  DefaultMaterial {
                      diffuseColor: light3.color
                      opacity: 0.4
                  }
              ]
          }
      }

      Rectangle {
          anchors.fill: settingsArea
          anchors.margins: -10
          color: "#e0e0e0"
          border.color: "#000000"
          border.width: 1
          opacity: 0.8
      }

      Column {
          id: settingsArea
          anchors.top: parent.top
          anchors.topMargin: 20
          anchors.left: parent.left
          anchors.leftMargin: 20
          CustomCheckBox {
              id: checkBoxShadows
              text: qsTr("Enable Shadows")
              checked: true
          }
          Item { width: 1; height: 40 }
          CustomCheckBox {
              id: checkBox1
              text: qsTr("Directional Light")
              checked: true
          }
          CustomSlider {
              id: slider1
              sliderValue: 50
              fromValue: 0
              toValue: 100
          }
          Item { width: 1; height: 40 }
          CustomCheckBox {
              id: checkBox2
              text: qsTr("Point Light")
              checked: true
          }
          CustomSlider {
              id: slider2
              sliderValue: 600
              fromValue: 0
              toValue: 1000
          }
          Item { width: 1; height: 40 }
          CustomCheckBox {
              id: checkBox3
              text: qsTr("Area Light")
              checked: true
          }
          CustomSlider {
              id: slider3
              sliderValue: 200
              fromValue: 0
              toValue: 500
          }
      }
  }