Lights.qml Example File | Qt 3D 5.12.10

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- Qt 3D: PBR Materials QML Example
- Lights.qml Example File
- Qt 5.12.10 Reference Documentation

# Lights.qml Example File

pbr-materials/Lights.qml

     /****************************************************************************
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     ** Copyright (C) 2016 Klaralvdalens Datakonsult AB (KDAB).
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     import QtQuick 2.1
     import Qt3D.Core 2.0
     import Qt3D.Render 2.0
     import Qt3D.Input 2.0
     import Qt3D.Extras 2.0

     Entity {
         id: lights

         // Point Light (pulsing)
         Entity {
             components: [
                 PointLight {
                     color: "red"
                     intensity: 0.3
                     constantAttenuation: 1.0
                     linearAttenuation: 0.0
                     quadraticAttenuation: 0.0025

                     NumberAnimation on intensity {
                         from: 0.3; to: 0.8;
                         running: true
                         loops: Animation.Infinite
                         duration: 1000
                         easing.type: Easing.CosineCurve
                     }
                 },
                 Transform {
                     translation: Qt.vector3d(0.0, 5.0, 0.0)
                 }
             ]
         }

         // 2 x Directional Lights (steady)
         Entity {
             components: [
                 DirectionalLight {
                     worldDirection: Qt.vector3d(0.3, -3.0, 0.0).normalized();
                     color: "#fbf9ce"
                     intensity: 0.3
                 }
             ]
         }

         Entity {
             components: [
                 DirectionalLight {
                     worldDirection: Qt.vector3d(-0.3, -0.3, 0.0).normalized();
                     color: "#9cdaef"
                     intensity: 0.15
                 }
             ]
         }

         // Spot Light (sweeping)
         Entity {
             components: [
                 SpotLight {
                     localDirection: Qt.vector3d(0.0, -1.0, 0.0)
                     color: "white"
                     intensity: 5.0
                 },
                 Transform {
                     id: spotLightTransform
                     translation: Qt.vector3d(0.0, 5.0, 0.0)
                     rotationZ: -60.0

                     SequentialAnimation {
                         loops: Animation.Infinite
                         running: true

                         NumberAnimation {
                             target: spotLightTransform
                             property: "rotationZ"
                             from: -60; to: 60
                             duration: 4000
                             easing.type: Easing.InOutQuad
                         }

                         NumberAnimation {
                             target: spotLightTransform
                             property: "rotationZ"
                             from: 60; to: -60
                             duration: 4000
                             easing.type: Easing.InOutQuad
                         }
                     }
                 }
             ]
         }
     }