Intuitive Shape Modeling by Shading Design

Shading has a great impact to the human perception of 3D objects. Thus, in order to create or to deform a 3D object, it seems natural to manipulate its perceived shading. This paper presents a new solution for the software implementation of this idea. Our approach is based on the ability of a user to coarsely draw a shading, under different lighting directions. With this intuitive process, users can create or edit a height field (locally or globally), that will correspond to the drawn shading values. Moreover, we present the possibility to edit the shading intensity by means of a specular reflectance model. Key words: Shape Modeling, Image Based Modeling, Shape From Shading.

• Type: Conference
• Year: 2005
• Where: SG
• Authors: Bertrand Kerautret, Xavier Granier, Achille J.-P. Braquelaire
• Keywords: 3D Object, Drawn Shading Values, SG 2005, Shading