First Person Sketch-based Terrain Editing

Flora Ponjou Tasse (1) , Arnaud Emilien (2, 3) , Marie-Paule Cani (2) , Stefanie Hahmann (2) , Adrien Bernhardt (2)

1 Computer Laboratory [Cambridge]
2 IMAGINE - Intuitive Modeling and Animation for Interactive Graphics & Narrative Environments
3 DIRO - Département d'Informatique et de Recherche Opérationnelle [Montreal]

We present a new method for first person sketch-based editing of terrain models. As in usual artistic pictures, the input sketch depicts complex silhouettes with cusps and T-junctions, which typically correspond to non-planar curves in 3D. After analysing depth constraints in the sketch based on perceptual cues, our method best matches the sketched silhouettes with silhouettes or ridges of the input terrain. A specific deformation algorithm is then applied to the terrain, enabling it to exactly match the sketch from the given perspective view, while insuring that none of the user-defined silhouettes is hidden by another part of the terrain. As our results show, this method enables users to easily personalize an existing terrain, while preserving its plausibility and style.

Domaines: Synthèse d'image et réalité virtuelle [cs.GR]

Flora Ponjou Tasse, Arnaud Emilien, Marie-Paule Cani, Stefanie Hahmann, Adrien Bernhardt. First Person Sketch-based Terrain Editing. Graphics Interface 2014, May 2014, Montréal, Canada. pp.217-224. ⟨hal-00976689⟩