Fix loading multiple overlaid scenes by add loaded scenes as children of a top level THREE.Scene. (As opposed to overwriting this.scene)
Fix loading multiple overlaid scenes by add loaded scenes as children of a
top level THREE.Scene. (As opposed to overwriting this.scene)

playsign/rexo3d,playsign/rexo3d,playsign/rexo3d,playsign/rexo3d