The Surface modifier in Autodesk's 3ds Max generates a patch surface based on the contours of a spline network. A patch is created wherever the segments of the interwoven splines form a three- or four-sided polygon. The Surface modifier and the CrossSection modifier, taken together, are referred to as Surface Tools. They allow you to create complex or organic surfaces, like the fuselage of a plane, or a three-dimensional character.
Autodesk's 3D Studio Max is a customizable and scalable 3D modeling and rendering solution for games, film, and television.