What type of effects does CGI produce in film?

CGI, or computer-generated imagery, is primarily used to create visual effects and animations in film. This technology allows filmmakers to generate images that may be difficult, expensive, or impossible to achieve with traditional methods. By using CGI, artists can create lifelike characters, elaborate environments, and stunning visual spectacles that greatly enhance storytelling. This includes everything from fantastical creatures and mythical landscapes to complex action sequences that involve intricate choreography and effects.

The other options, while they relate to aspects of filmmaking, do not accurately represent the primary function of CGI. Natural lighting effects can be enhanced using CGI but are not solely produced through it. Live action performances refer to actors performing in front of the camera, which is distinct from CGI operations. Acoustic soundscapes pertain to sound design, which supports the visual elements but is unrelated to the visual effects and animations CGI produces. Thus, the correct answer highlights the core purpose of CGI in enhancing narrative and visual storytelling.