Shading-Based Surface Modeling and Editing

We present a system for free-form surface modeling and editing that allows a user to create a surface and modify a shape by shaded image using stroke-based drawing tools. After user input sketch contours, smooth distance fields are computed, then translated into height fields. A closed smooth surface is created by the contours and the inferred height fields. Further, user can editing surface by sketched stroke, a new shape, whose rendered image closely approximate user input, is computed using an efficient and stable surface optimization procedure. We demonstrate how several types of free-form surface modeling and editing which may be difficult in terms of standard modeling and deformation approaches can be easily performed using our system.