Proceedings: GI 2014

First person sketch-based terrain editing

Flora Tasse , Arnaud Emilien , Marie-Paule Cani , Stefanie Hahmann , Adrien Bernhardt

Proceedings of Graphics Interface 2014: Montréal, Québec, Canada, 7 - 9 May 2014, 217-224

DOI 10.20380/GI2014.28

  • Bibtex

    author = {Tasse, Flora and Emilien, Arnaud and Cani, Marie-Paule and Hahmann, Stefanie and Bernhardt, Adrien},
    title = {First person sketch-based terrain editing},
    booktitle = {Proceedings of Graphics Interface 2014},
    series = {GI 2014},
    year = {2014},
    issn = {0713-5424},
    isbn = {978-1-4822-6003-8},
    location = {Montr{\'e}al, Qu{\'e}bec, Canada},
    pages = {217--224},
    numpages = {8},
    doi = {10.20380/GI2014.28},
    publisher = {Canadian Human-Computer Communications Society},
    address = {Toronto, Ontario, Canada},


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.