@Override
    public void simpleInitApp() {
        ColorRGBA skyColor = new ColorRGBA(0.5f, 0.6f, 0.7f, 0.0f);

        flyCam.setMoveSpeed(20);
        viewPort.setBackgroundColor(skyColor.mult(0.9f));

        cam.setLocation(new Vector3f(0, 10, 20));
        rootNode.attachChild(getAssetManager().loadModel("jme3test/scenes/unlit.gltf"));
    }
Tests the GLTF scene containing an unlit material. If it works, it should use the
Common/MatDefs/Misc/Unshaded.j3md material definition for those objects.

@author Markil 3
@version 3.3.0-SNAPSHOT
jme3-examples/src/main/java/jme3test/light/TestGltfUnlit.java