What is CGI (Computer-Generated Imagery)?
CGI is animated or still content created using computer software. A widely used technique across film, TV, video games, and ads, CGI helps generate images that would be too expensive to shoot or impossible to achieve with traditional filmmaking techniques. CGI is also a good alternative to performing dangerous scenes or using stunt doubles.
CGI can be as simple as using 2D effects and as difficult as creating complex 3D environments that mimic the real world. In filmmaking, CGI is used to create visual effects (VFX), like fantastical creatures, dangerous explosions, or entire ecosystems that don’t actually exist. Think Avatar’s realistic world or Pixar’s Toy Story.
But computer-generated graphics aren’t limited to the big screen. Architecture firms use them to show their clients what the final outcome of their designs would look like. The medical industry uses CGI for simulations and presentations of procedures.
Key concepts in CGI:
- 3D modeling: Creating three-dimensional objects or environments.
- Animation: Bringing CGI objects to life through movement.
- Rendering: The process of converting 3D models into realistic or stylized visuals.
- Compositing: Combining CGI elements with live-action footage for seamless integration.
What is an example of CGI?
A well-known example of CGI (Computer-Generated Imagery) is the creation of dinosaurs in the Jurassic Park movies.
Is CGI still used today?
Yes, CGI is still widely used today across film, TV, video games, and ads. Superhero franchises like Avengers heavily depend on CGI to bring superhuman abilities to life. Apart from that, CGI is also common in industries like architecture and medicine.
How expensive is CGI?
The cost depends on how complex the project is. Simple effects might only cost a few thousand dollars, but major film projects like those produced by Marvel Studios can run up to millions of dollars in CGI alone. Some high-end CGI scenes can cost between $100,000 to several million dollars.
What is CGI called now?
While CGI is still commonly called Computer-Generated Imagery, in some contexts, it might be referred to as VFX (Visual Effects) when used in filmmaking. Some industries like architecture or design may refer to it as 3D rendering or 3D graphics
Is CGI considered AI?
CGI and AI (Artificial Intelligence) are two distinct technologies. While CGI involves creating visual content through software, AI can assist in automating some CGI processes, such as generating realistic textures or animating characters.
What is the difference between CGI and animation?
Animation uses both hand-drawn techniques and computer software to generate images. So, CGI is a subset of animation. The distinction is CGI only uses computer software to produce imagery.
