Ítem


Example-based fractured appearance

A common weathering effect is the appearance of cracks due to material fractures. Previous exemplar-based aging And weathering methods have either reused images or sought to replicate observed patterns exactly. We introduce A new approach to exemplar-based modeling that creates weathered patterns on synthetic objects by matching the Statistics of fracture patterns in a photograph. We present a user study to determine which statistics are correlated To visual similarity and how they are perceived by the user. We then describe a revised physically-based fracture Model capable of producing a wide range of crack patterns at interactive rates. We demonstrate how a Bayesian Optimization method can determine the parameters of this model so it can produce a pattern with the same key Statistics as an exemplar. Finally, we present results using our approach and various exemplars to produce a Variety of fracture effects in synthetic renderings of complex environments. The speed of the fracture simulation Allows interactive previews of the fractured results and its application on large scale environments

This work is partially supported by the Spanish Ministerio de Ciencia e Innovacion (grant TIN2010-20590-C02-02) and NSF grant NSF-1064412

Wiley

Director: Ministerio de Ciencia e Innovación (Espanya)
Autor: Glondu, Loeiz
Muguercia, Lien
Marchal, Maud
Bosch Geli, Carles
Rushmeier, Holly
Dumont, George
Drettakis, George
Resum: A common weathering effect is the appearance of cracks due to material fractures. Previous exemplar-based aging And weathering methods have either reused images or sought to replicate observed patterns exactly. We introduce A new approach to exemplar-based modeling that creates weathered patterns on synthetic objects by matching the Statistics of fracture patterns in a photograph. We present a user study to determine which statistics are correlated To visual similarity and how they are perceived by the user. We then describe a revised physically-based fracture Model capable of producing a wide range of crack patterns at interactive rates. We demonstrate how a Bayesian Optimization method can determine the parameters of this model so it can produce a pattern with the same key Statistics as an exemplar. Finally, we present results using our approach and various exemplars to produce a Variety of fracture effects in synthetic renderings of complex environments. The speed of the fracture simulation Allows interactive previews of the fractured results and its application on large scale environments
This work is partially supported by the Spanish Ministerio de Ciencia e Innovacion (grant TIN2010-20590-C02-02) and NSF grant NSF-1064412
Accés al document: http://hdl.handle.net/2072/297288
Llenguatge: eng
Editor: Wiley
Drets: Tots els drets reservats
Matèria: Infografia
Computer graphics
Estadística bayesiana
Bayesian statistical decision theory
Simulació per ordinador
Computer simulation
Títol: Example-based fractured appearance
Tipus: info:eu-repo/semantics/article
Repositori: Recercat

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