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DOI: 10.1111/j.1467-8659.2012.03144.x

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Computer Graphics Forum 31, 4 (2012) 1481-1490

Surface Relief Analysis for Illustrative Shading

Lucas Ammann 1, 2, 3, Pascal Barla 1, 2, 3, Xavier Granier 1, 2, 3, Gael Guennebaud 1, 2, 3, Patrick Reuter 1, 2, 3

(2012-06-27)

In this paper, we present an analysis technique that leverages the complexity found in detailed 3D models for illustrative shading purposes. Given a smooth base surface with relief, it locates relief features (concavities, convexities and inflections) around each surface point and at multiple scales, using cubic-polynomial fitting. This object-space, per-vertex information is then used to guide a variety of shading techniques including normal enhancement, feature visualization, accessibility shading and radiance scaling. Thanks to this approach, features at multiple scales are easily combined, filtered and shaded, allowing users to explore surface relief in real-time.

1:	MANAO (INRIA Bordeaux - Sud-Ouest)
	INRIA
2:	Laboratoire Bordelais de Recherche en Informatique (LaBRI)
	CNRS : UMR5800 – Université Sciences et Technologies - Bordeaux I – École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB) – Université Victor Segalen - Bordeaux II
3:	Laboratoire Photonique, Numérique et Nanosciences (LP2N)
	Institut d'Optique Graduate School (IOGS) – CNRS : UMR5298 – Université Sciences et Technologies - Bordeaux I

Research team (except Inria): lp2n-05

Domain

:

Computer Science/Computer Graphics and Virtual Reality

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From: Xavier Granier <>

Submitted on: Monday, 18 June 2012 18:24:02

Updated on: Thursday, 18 October 2012 16:32:41