Final answer:
In CGI, motion is defined through the use of matrix transformations, a computer algorithm that manages how objects move and interact within a digital environment. This is fundamental in animating 3D models and creating realistic scenes in movies and other forms of digital art.
Step-by-step explanation:
In CGI (Computer-Generated Imagery), the abstract concept of motion is defined in terms of matrix transformations, an algorithmic operation easily programmed on a computer. Matrix transformations are utilized extensively in computer graphics to create motion, manipulate objects in 3D space, and simulate the physics of a virtual environment. This includes operations like translation, rotation, and scaling, which are fundamental for animating digital models and creating the illusion of movement within a virtual scene.
Many software programs allow for collaboration in this realm, making it possible to work collectively on artistic creations. In movies, CGI requires a deep understanding of both scalar and vector quantities to accurately portray two-dimensional and three-dimensional motion. By combining vectors and using matrix transformations, artists and programmers can control the displacement, velocity, and acceleration of objects to achieve realistic or stylized motion in virtual environments.