3D filming is a technique that creates the illusion of depth in images, making them appear three-dimensional. This is achieved by capturing two slightly different perspectives of the same scene, mimicking how human eyes perceive depth. When these images are viewed together, they create a sense of immersion, allowing audiences to feel as if they are part of the action. To experience 3D films, viewers typically wear special glasses that filter the images for each eye. This technology is commonly used in cinema, virtual reality, and video games, enhancing the visual experience and making it more engaging for the audience.