What is the definition of visual effects (VFX)?

• A. Live camera techniques to enhance lighting.
• B. Animation of characters in real-time.
• C. Stock footage library.
• D. Effects created in post-production using computers, often for footage that is too dangerous or difficult to film live.

Answer: (D)

Visual effects are the digital tricks added after filming using computer software to blend CGI, composites, and simulations into the live footage. This lets filmmakers create scenes that would be too dangerous, expensive, or impossible to capture in reality—like large explosions, fantastical creatures, or seamless spaceships—without putting actors or crews at risk. The work happens in post-production, after the scenes are shot, and relies on techniques such as compositing, 3D modeling, animation, and rendering to integrate the computer-generated elements with the real footage. This is different from in-camera lighting or practical effects done on set, from real-time animation (which happens during live production), and from stock footage libraries, which are pre-recorded clips reused rather than created to build new scenes.