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++ // Copyright (C) 2022 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
++
++ import QtQuick
++ import QtQuick3D
++ import QtQuick3D.Particles3D
++ import QtQuick3D.Helpers
++
++ ParticleSystem3D {
++
++ property real gravityStrength: 0.0
++ property bool variableLengthEnabled: false
++ property int lifespan: 3000
++
++ id: psystem
++
++ Gravity3D {
++ position: Qt.vector3d(600, 100, 0)
++ magnitude: psystem.gravityStrength
++ direction: Qt.vector3d(1, 0, 0)
++ }
++
++ LineEmitter {
++ description: "length 50"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 0, 0)
++ variableLengthEnabled: psystem.variableLengthEnabled
++ lifespan: psystem.lifespan
++ }
++
++ LineEmitter {
++ description: "length 100"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 50, 0)
++ lineLength: 100
++ velocityX: 240
++ lifespan: psystem.lifespan - 1000
++ variableLengthEnabled: psystem.variableLengthEnabled
++ }
++
++ LineEmitter {
++ description: "End-of-Life fade"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 100, 0)
++ particleEolFadeDuration: 1000
++ fadeOutDuration: 0
++ variableLengthEnabled: psystem.variableLengthEnabled
++ lifespan: psystem.lifespan
++ }
++
++ LineEmitter {
++ description: "textured"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 150, 0)
++ textureEnabled: true
++ variableLengthEnabled: psystem.variableLengthEnabled
++ lifespan: psystem.lifespan
++ }
++
++ LineEmitter {
++ description: "textured, absolute coordinates"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 200, 0)
++ textureEnabled: true
++ particleTexcoordMode: LineParticle3D.Absolute
++ variableLengthEnabled: psystem.variableLengthEnabled
++ lifespan: psystem.lifespan
++ }
++
++ LineEmitter {
++ description: "textured, filled"
++ fontSize: mainWindow.fontSize
++ system: psystem
++ emitterPosition: Qt.vector3d(0, 250, 0)
++ textureEnabled: true
++ particleTexcoordMode: LineParticle3D.Fill
++ variableLengthEnabled: psystem.variableLengthEnabled
++ lifespan: psystem.lifespan
++ }
++ }