T. Igarashi, S. Matsuoka, and H. Tanaka, Teddy: a Sketching Interface for 3D Freeform Design, Proceedings of the 26th annual conference on Computer graphics and interactive techniques, ser. SIGGRAPH '99, pp.409-416, 1999.

R. D. Kalnins, L. Markosian, B. J. Meier, M. A. Kowalski, J. C. Lee et al., WYSIWYG NPR, Proceedings of the 29th annual conference on Computer graphics and interactive techniques , SIGGRAPH '02, pp.755-762, 2002.
DOI : 10.1145/566570.566648

R. Schmidt, B. Wyvill, M. C. Sousa, and J. A. Jorge, ShapeShop: Sketch-based Solid Modeling with BlobTrees, ACM SIGGRAPH 2007 courses, ser. SIGGRAPH '07, 2007.

A. Nealen, T. Igarashi, O. Sorkine, and M. Alexa, FiberMesh: Designing Freeform Surfaces with 3D Curves, ACM SIGGRAPH 2007 papers, ser. SIGGRAPH '07, 2007.

G. J. De-carpentier and R. Bidarra, Interactive GPU-based procedural heightfield brushes, Proceedings of the 4th International Conference on Foundations of Digital Games, FDG '09, pp.55-62, 2009.
DOI : 10.1145/1536513.1536532

E. Yeguas, R. Muoz-salinas, and R. Medina-carnicer, Example-based Procedural Modelling by Geometric Constraint Solving Multimedia Tools and Applications, pp.1-30, 2011.

H. Zhou, J. Sun, G. Turk, and J. M. Rehg, Terrain Synthesis from Digital Elevation Models, IEEE Transactions on Visualization and Computer Graphics, vol.13, issue.4, pp.834-848, 2007.
DOI : 10.1109/TVCG.2007.1027

K. Perlin and L. Velho, Live paint, Proceedings of the 22nd annual conference on Computer graphics and interactive techniques , SIGGRAPH '95, pp.153-160, 1995.
DOI : 10.1145/218380.218437

J. M. Cohen, J. F. Hughes, and R. C. Zeleznik, Harold, Proceedings of the first international symposium on Non-photorealistic animation and rendering , NPAR '00, pp.83-90, 2000.
DOI : 10.1145/340916.340927

J. Gain, P. Marais, and W. Straßer, Terrain sketching, Proceedings of the 2009 symposium on Interactive 3D graphics and games, I3D '09, pp.31-38, 2009.
DOI : 10.1145/1507149.1507155

R. Smelik, T. Tutenel, K. J. De-kraker, and R. Bidarra, Integrating procedural generation and manual editing of virtual worlds, Proceedings of the 2010 Workshop on Procedural Content Generation in Games, PCGames '10, pp.1-2, 2010.
DOI : 10.1145/1814256.1814258

N. H. Anh, A. Sourin, and P. Aswani, Physically based hydraulic erosion simulation on graphics processing unit, Proceedings of the 5th international conference on Computer graphics and interactive techniques in Australia and Southeast Asia , GRAPHITE '07, pp.257-264, 2007.
DOI : 10.1145/1321261.1321308

A. Peytavie, E. Galin, J. Grosjean, and S. Merillou, Arches: a Framework for Modeling Complex Terrains, Computer Graphics Forum, vol.13, issue.4, pp.457-467, 2009.
DOI : 10.1111/j.1467-8659.2009.01385.x

URL : https://hal.archives-ouvertes.fr/hal-01250530

H. Hnaidi, E. Guérin, S. Akkouche, A. Peytavie, and E. Galin, Feature based terrain generation using diffusion equation, Computer Graphics Forum, vol.13, issue.4, p.4974, 2010.
DOI : 10.1111/j.1467-8659.2010.01806.x

URL : https://hal.archives-ouvertes.fr/hal-01381590

R. A. Finkel and J. L. Bentley, Quad trees a data structure for retrieval on composite keys, Acta Informatica, vol.4, issue.1, pp.1-9, 1974.
DOI : 10.1007/BF00288933

L. Olsen, F. F. Samavati, M. C. Sousa, and J. A. Jorge, Sketch-based modeling: A survey, Computers & Graphics, vol.33, issue.1, pp.85-103, 2009.
DOI : 10.1016/j.cag.2008.09.013

T. Igarashi, S. Matsuoka, and H. Tanaka, Teddy: a Sketching Interface for 3D Freeform Design, ACM SIGGRAPH 2007 courses, ser. SIGGRAPH '07, 2007.

T. Igarashi and J. F. Hughes, A Suggestive Interface for 3D Drawing, ACM SIGGRAPH 2007 courses, ser. SIGGRAPH '07, 2007.

N. Watanabe and T. Igarashi, A sketching interface for terrain modeling, ACM SIGGRAPH 2004 Posters on , SIGGRAPH '04, p.73, 2004.
DOI : 10.1145/1186415.1186500

F. Losasso and H. Hoppe, Geometry clipmaps, ACM Transactions on Graphics, vol.23, issue.3, pp.769-776, 2004.
DOI : 10.1145/1015706.1015799

A. Asirvatham, H. Hoppe, O. St-'ava, B. Bene?, M. Brisbin et al., Terrain Rendering using GPUbased Geometry Clipmaps Available: http://http.developer.nvidia.com/GPUGems2 Interactive Terrain Modeling using Hydraulic Erosion, Proceedings of the 2008 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, ser. SCA '08. Aire-la-Ville, pp.201-210, 2005.