Description: The viewport grid overlay in 3D modeling environments is a graphical tool used to facilitate the alignment and organization of objects within a three-dimensional space. This tool appears as a series of lines that divide the workspace into smaller sections, allowing users to have a clear visual reference for positioning and scaling elements accurately. The grid can be adjusted in terms of size and density, enabling designers to tailor it to their specific needs. Additionally, many 3D design applications allow users to toggle the grid on or off as needed, providing flexibility in the workflow. Its use is fundamental in creating models, as it helps maintain proportion and symmetry, which are crucial aspects in designing complex objects. In summary, the viewport grid overlay is an essential tool that enhances precision and efficiency in 3D modeling work.