Passive 3D is a technology used to create three-dimensional images without the need for active electronic devices like powered glasses. Instead, it employs special glasses with polarized lenses that filter light, allowing each eye to see a different image. This creates the illusion of depth, making the viewing experience more immersive. This method is commonly used in cinemas and some home entertainment systems. It is often more affordable than active 3D systems, which require battery-powered glasses. Popular films and events, such as those featuring Marvel or Disney, frequently utilize passive 3D to enhance audience engagement.