Qt Quick 3D - Dynamic Model Creation Example

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 import QtQuick
 import QtQuick3D

 Node {
     id: weirdShape

     property real xRotation: Math.random() * (360 - (-360)) + -360
     property real yRotation: Math.random() * (360 - (-360)) + -360
     property real zRotation: Math.random() * (360 - (-360)) + -360

     property real hue: Math.random()

     Model {
         source: "weirdShape.mesh"
         scale: Qt.vector3d(150, 150, 150)
         eulerRotation.x: 90

         SequentialAnimation on eulerRotation {
             loops: Animation.Infinite
             PropertyAnimation {
                 duration: Math.random() * (10000 - 1000) + 1000
                 to: Qt.vector3d(xRotation -  360, yRotation - 360, zRotation - 360)
                 from: Qt.vector3d(xRotation, yRotation, zRotation)
             }
         }

         materials: [ DefaultMaterial { diffuseColor: Qt.hsva(hue, 1.0, 1.0, 1.0) } ]
     }
 }