Qt Quick 3D - Effects Example

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 import QtQuick
 import QtQuick3D
 import QtQuick3D.Effects

 Effect {
     property real amount: 0.01
     property bool flipHorizontally: false
     property bool flipVertically: true

     Shader {
         id: blur
         stage: Shader.Fragment
         shader: "qrc:/qtquick3deffects/shaders/blur.frag"
     }

     Shader {
         id: flip
         stage: Shader.Fragment
         shader: "qrc:/qtquick3deffects/shaders/flip.frag"
     }

     Buffer {
         id: tempBuffer
         name: "tempBuffer"
         format: Buffer.RGBA8
         textureFilterOperation: Buffer.Linear
         textureCoordOperation: Buffer.ClampToEdge
         bufferFlags: Buffer.None // aka frame lifetime
     }

     passes: [
         Pass {
             shaders: blur
             output: tempBuffer
         },
         Pass {
             shaders: flip
             commands: [
                 BufferInput {
                     buffer: tempBuffer
                 }
             ]
         }
     ]
 }