Shading-Based Surface Editing

Yotam Gingold and Denis Zorin
ACM Transactions on Graphics (TOG) 27(3):95:1–95:9. Also in Proceedings of SIGGRAPH North America 2008.

Paper (14M)
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We present a system for free-form surface modeling that allows a user to modify a shape by changing its rendered, shaded image using stroke-based drawing tools. User input is translated into a set of tangent and positional constraints on the surface. A new shape, whose rendered image closely approximates user input, is computed using an efficient and stable surface optimization procedure. We demonstrate how several types of free-form surface edits which may be difficult to cast in terms of standard deformation approaches can be easily performed using our system.

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