private void configureCamera() {
        flyCam.setMoveSpeed(15f);
        flyCam.setDragToRotate(true);

        cam.setLocation(Vector3f.UNIT_XYZ.mult(12));
        cam.lookAt(Vector3f.ZERO, Vector3f.UNIT_Y);
    }
This test specifically validates the corrected PBR rendering when combined
with instancing, as addressed in issue #2435. 

It creates an InstancedNode
with a PBR-materialized Box to ensure the fix in PBRLighting.vert correctly
handles world position calculations for instanced geometry.
jme3-examples/src/main/java/jme3test/scene/instancing/TestInstanceNodeWithPbr.java