The Walt Disney Company
Special effects system providing a ceiling saber cut

Abstract:

A special effects system to provide the effect or illusion of a surface of a set (such as a ceiling, sidewall, floor, or the like) being penetrated and cut by a physical prop (e.g., a tool or weapon). In some preferred embodiments, the physical prop takes on the appearance of a glowing or hot elongated rod similar to the blade of an energy sword or light saber as found in entertainment media. The system is configured to provide the illusion, in these cases, that a circular groove or slot is being formed as the hot blade burns through the material of the surface of the set/scene. Additional effects add to the believability of this illusion including the up and down sawing movement of the physical prob through the slot, appearance of smoke with shadows near the cutting regions, and bright sparkling lighting at leading edge of slot.