Enhanced illumination of reconstructed dynamic environments using a real-time flame model - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2006

Enhanced illumination of reconstructed dynamic environments using a real-time flame model

Résumé

The goal of interactive walkthroughs in three dimensional computer reconstructions is to give people a sensation of immersion in different sites at different periods. Realism of these walkthroughs is achieved not only with detailed 3D models but also with a correct illumination regarding the means of lighting in those times. Working on the enhancement of the visual appearance of the computer reconstruction of the Gallo-Roman forum of Bavay, we propose a model that reproduces the shape, animation and illumination of simple flames produced by candles and oil lamps in real-time. Flame dynamics is simulated using a Navier-Stokes equation solver animating particle skeletons. Its shape is obtained using those particles as control points of a NURBS surface. The photometric distribution of a real flame is captured by a spectrophotometer and stored into a photometric solid. This one is used as a spherical texture in a pixel shader to compute accurately the illumination produced by the flame in any direction. Our model is compatible with existing shadow algorithms and designed to be easily incorporated in any cultural heritage real-time application.
Fichier non déposé

Dates et versions

Identifiants

Citer

Flavien Bridault-Louchez, Michel Leblond, Francois Rousselle, Christophe Renaud. Enhanced illumination of reconstructed dynamic environments using a real-time flame model. AFRIGRAPH06: 4th International Conference on Computer Graphics, Virtual Reality, Visualization and Interaction in Africa, Jan 2006, Cape Town, South Africa. pp.31, ⟨10.1145/1108590.1108596⟩. ⟨hal-03505365⟩
15 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More