A brief overview of the orb-web construction is presented. Computer situation, in combination with 2-D Fourier transform of the hologram image, is a method of discriminating between realistic and unrealistic hypotheses about which cues are used in orb-web construction. The potential applications of coherent spatial filtering were particularly evident in the field of orb-web transformation, and this method stimulated additional interest in these techniques. The most important result of this study has been the demonstration that an apparently complex behaviour pattern can be simulated by making simple decision based on hologram image.