Making changes to the camera in After Effects will affect which parts of the composition?

When adjusting the camera in After Effects, the changes primarily affect 3D layers within a composition. This is because a camera in After Effects is designed to interact with 3D elements to create depth, perspective, and the illusion of three-dimensional space.

When you move or adjust the camera, it alters how the 3D layers are rendered in relation to one another, changing their position on the Z-axis, which is crucial for creating visual depth. This interaction allows for effects such as parallax and various views that simulate real-world camera movements, enhancing the overall perception of the scene.

In contrast, 2D layers do not respond to the camera in the same manner because they lack depth information. Therefore, modifications to the camera will not influence these layers, leading to the conclusion that only the 3D layers are affected. This understanding is essential for effectively utilizing cameras in compositions within After Effects for dynamic and visually engaging projects.