Error when loading Studio3D scene

[Aras]

I am trying to test integrating a Studio3D scene inside a qml application. I have the following code:

Window {
    title: qsTr("test3d")
    width: 640
    height: 360
    visible: true

    Studio3D {
        id: studio3D
        anchors.fill: parent

        ViewerSettings {
            scaleMode: ViewerSettings.ScaleModeFit
        }

        Presentation {
            id: stuff3d
            source: "qrc:/SampleProject/SampleProject.uia"

            SceneElement {
                id: mainScene
                elementPath: "Cluster3D"
            }

            SceneElement {
                id: masterScene
                elementPath: "Front"
            }

            SceneElement {
                id: mapScene
                elementPath: "Map"
            }
        }
    }
}

This references the sample project and I add the sample project files to qrc so the source for presentation element is resolved. However, when I run the app I just see a black window and an stream of errors continues to repeat in the application output terminal. Here is the error that keeps repeating several times per second:

Framebuffer blits are not supported by ES 2.0 (since ES 3.1)
FBO incomplete
FBO incomplete
FBO incomplete
FBO incomplete
FBO incomplete
FBO incomplete
FBO incomplete
FBO incomplete
Framebuffer blits are not supported by ES 2.0 (since ES 3.1)

I am running this on Linux. The sample project in Qt 3D Studio runs fine on this system so I assume 3D run time is installed. What am I missing then?

[SGaist]

Hi,

Your application likely needs to request a context with OpenGL ES3 as a minimum. See this blog post about that matter.

Hope it helps

[Aras]

That helped a lot, thank you! I think the key was to make the call to QSurfaceFormat::setDefaultFormat(Q3DS::surfaceFormat()); Someone on IRC pointed me to this documentation page that also had the solution:

http://doc.qt.io/qt3dstudio/runtime/qt3d-runtime-requirements.html

[SGaist]

Thanks for sharing your findings !