@Override
    public boolean initVRCompositor(boolean set) {
        if (!set) {
            throw new UnsupportedOperationException("Cannot use LibOVR without compositor!");
        }

        setupLayers();

        framebuffers = new FrameBuffer[2][];
        for (int eye = 0; eye < 2; eye++)
            setupFramebuffers(eye);

        // TODO move initialization code here from VRViewManagerOculus
        return true;
    }
Frame buffers we can draw into.
jme3-vr/src/main/java/com/jme3/input/vr/oculus/OculusVR.java