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++ // Copyright (C) 2025 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Particles3D
++
++ Item {
++ width: 1024
++ height: 600
++ id: mainWindow
++
++ property real systemtime: 0
++ property real fontSize: 14
++
++ Text {
++ x : mainWindow.width / 4
++ text: "Normal"
++ font.pixelSize: mainWindow.fontSize
++ color: "black"
++ }
++ Text {
++ id: textbox
++ x : 3 * mainWindow.width / 4
++ text: "Reversed"
++ font.pixelSize: mainWindow.fontSize
++ color: "black"
++ }
++
++ component ParticleSystem : ParticleSystem3D {
++ id: psystem
++ property bool reversedSystem
++ useRandomSeed: false
++ running: false
++
++ startTime: 2000
++
++ Model {
++ source: "#Rectangle"
++ position: Qt.vector3d(0, -100, 0)
++
++ materials: [DefaultMaterial {
++ diffuseColor: "white"
++ lighting: DefaultMaterial.NoLighting
++ }
++ ]
++ }
++
++ SpriteParticle3D {
++ id: sprites
++ color: "red"
++ particleScale: 10.0
++ maxAmount: 200
++ }
++
++ ParticleEmitter3D {
++ id: emitter
++ position: Qt.vector3d(0, -50, 0)
++ system: psystem
++ particle: sprites
++ reversed: reversedSystem
++ emitRate: 5
++ lifeSpan: 3000
++ }
++ Gravity3D {
++
++ }
++ }
++
++ View3D {
++ anchors.topMargin: textbox.height
++ anchors.fill: parent
++
++ environment: SceneEnvironment {
++ clearColor: "#101010"
++ backgroundMode: SceneEnvironment.Color
++ antialiasingMode: SceneEnvironment.MSAA
++ antialiasingQuality: SceneEnvironment.VeryHigh
++ }
++ camera: PerspectiveCamera {
++ id: camera
++ position: Qt.vector3d(-250, 100, 500)
++ clipFar: 2000
++ }
++
++ ParticleSystem {
++ position: Qt.vector3d(-500, 300, 0)
++ }
++ ParticleSystem {
++ position: Qt.vector3d(50, 300, 0)
++ reversedSystem: true
++ }
++ }
++ }