PerspectiveItem.qml Example File

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  import QtQuick 2.0

  Image {
      id: rootItem

      property bool created: false
      property string image

      property double scaledBottom: y + (height + height*scale) / 2
      property bool onLand: scaledBottom > (window.height / 2 + window.centerOffset)

      source: image
      opacity: onLand ? 1 : 0.25
      scale: Math.max((y + height - 250) * 0.01, 0.3)

      onCreatedChanged: {
          if (created && !onLand)
              rootItem.destroy();
          else
              z = scaledBottom;
      }

      onYChanged: z = scaledBottom;
  }