Practical effect

Real-world (non-visual) special effect for cinema

In filmmaking, a practical effect is a special effect produced physically, without computer-generated imagery or other post-production techniques. In some contexts, "special effect" is used as a synonym of "practical effect", in contrast to "visual effects" which are created in post-production through photographic manipulation or computer generation. Practical effects often use principles from magic tricks, exploiting the camera's single viewpoint to create convincing illusions that may work only from certain angles, or using specially created props designed to achieve the desired effect.

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