trailemitter.qml Example File

particles/emitters/content/trailemitter.qml
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 import QtQuick 2.0
 import QtQuick.Particles 2.0

 Rectangle {
     id: root
     width: 360
     height: 540
     color: "black"

     ParticleSystem {
         id: particles
         anchors.fill: parent

         ImageParticle {
             id: smoke
             system: particles
             anchors.fill: parent
             groups: ["A", "B"]
             source: "qrc:///particleresources/glowdot.png"
             colorVariation: 0
             color: "#00111111"
         }
         ImageParticle {
             id: flame
             anchors.fill: parent
             system: particles
             groups: ["C", "D"]
             source: "qrc:///particleresources/glowdot.png"
             colorVariation: 0.1
             color: "#00ff400f"
         }

         Emitter {
             id: fire
             system: particles
             group: "C"

             y: parent.height
             width: parent.width

             emitRate: 350
             lifeSpan: 3500

             acceleration: PointDirection { y: -17; xVariation: 3 }
             velocity: PointDirection {xVariation: 3}

             size: 24
             sizeVariation: 8
             endSize: 4
         }

         TrailEmitter {
             id: fireSmoke
             group: "B"
             system: particles
             follow: "C"
             width: root.width
             height: root.height - 68

             emitRatePerParticle: 1
             lifeSpan: 2000

             velocity: PointDirection {y:-17*6; yVariation: -17; xVariation: 3}
             acceleration: PointDirection {xVariation: 3}

             size: 36
             sizeVariation: 8
             endSize: 16
         }

         TrailEmitter {
             id: fireballFlame
             anchors.fill: parent
             system: particles
             group: "D"
             follow: "E"

             emitRatePerParticle: 120
             lifeSpan: 180
             emitWidth: TrailEmitter.ParticleSize
             emitHeight: TrailEmitter.ParticleSize
             emitShape: EllipseShape{}

             size: 16
             sizeVariation: 4
             endSize: 4
         }

         TrailEmitter {
             id: fireballSmoke
             anchors.fill: parent
             system: particles
             group: "A"
             follow: "E"

             emitRatePerParticle: 128
             lifeSpan: 2400
             emitWidth: TrailEmitter.ParticleSize
             emitHeight: TrailEmitter.ParticleSize
             emitShape: EllipseShape{}

             velocity: PointDirection {yVariation: 16; xVariation: 16}
             acceleration: PointDirection {y: -16}

             size: 24
             sizeVariation: 8
             endSize: 8
         }

         Emitter {
             id: balls
             system: particles
             group: "E"

             y: parent.height
             width: parent.width

             emitRate: 2
             lifeSpan: 7000

             velocity: PointDirection {y:-17*4*2; xVariation: 6*6}
             acceleration: PointDirection {y: 17*2; xVariation: 6*6}

             size: 8
             sizeVariation: 4
         }

         Turbulence { //A bit of turbulence makes the smoke look better
             anchors.fill: parent
             groups: ["A","B"]
             strength: 32
             system: particles
         }
     }
 }