What does the process of modelling for animation involve?

The process of modeling for animation primarily involves building a 3D object. This step is essential in creating the visual assets that will be animated later. In 3D animation, modeling refers to the creation of a digital representation of characters, objects, or environments in a three-dimensional space, which can then be textured, rigged, and animated.

A significant part of this process is that the model must be constructed with both aesthetics and functionality in mind. This means that it needs to have the right geometry to move convincingly during animation and meet the artistic style of the project. Once the model is completed, it serves as the foundation for the next stages in animation, where movements and actions will be applied.

The other options involve different aspects of animation production. Creating a 2D drawing pertains to concept art or storyboarding, which seeks to establish initial ideas visually. Writing a script is more related to storytelling and dialogue development, ensuring that the narrative direction is clear. Designing keyframes involves defining specific frames that determine critical points of motion in the animation process but does not encapsulate the full modeling process. Hence, building a 3D object accurately describes the crucial modeling aspect in animation.