QQuickFramebufferObject update ShaderEffect

[Dmitry89]

I'm editing "textureinsgnode qt example" :

@ Renderer {
id: renderer
anchors.fill: parent
anchors.margins: 10

    visible: false
}

ShaderEffectSource {
    id: itemSource
    sourceItem: renderer
}
ShaderEffect {
    id: glitemshader
    anchors.fill: parent
    anchors.margins: 10
    property variant source: itemSource
    property real brightness: 1.0
    fragmentShader: "
                        uniform sampler2D source;
                        varying highp vec2 qt_TexCoord0;

                        void main() {
                            gl_FragColor = texture2D(source, qt_TexCoord0);
                            gl_FragColor.r = 0.0;
                            gl_FragColor.a = 1.0;
                    }"
}

@

ShaderEffect does not want to automatically update after updating of the renderer,so I always see a static image. How to enable updating?

[agocs]

This should be fixed in 5.4. https://bugreports.qt-project.org/browse/QTBUG-40809