Extended free-form deformation: a sculpturing tool for 3D geometric modeling
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
ROAMing terrain: real-time optimally adapting meshes
VIS '97 Proceedings of the 8th conference on Visualization '97
Large steps in cloth simulation
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Graphical modeling and animation of brittle fracture
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Computer Vision
inTouch: Interactive Multiresolution Modeling and 3D Painting with a Haptic Interface
VR '00 Proceedings of the IEEE Virtual Reality 2000 Conference
Marker Tracking and HMD Calibration for a Video-Based Augmented Reality Conferencing System
IWAR '99 Proceedings of the 2nd IEEE and ACM International Workshop on Augmented Reality
ArtNova: touch-enabled 3D model design
SIGGRAPH '05 ACM SIGGRAPH 2005 Courses
Embedded deformation for shape manipulation
ACM SIGGRAPH 2007 papers
Multi-resolution Meshes Deformation Based on Pyramid Coordinates
CGIV '07 Proceedings of the Computer Graphics, Imaging and Visualisation
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This work presents a method that allows the deformation of a terrain by modifying its heightmap in an augmented reality environment. The hierarchical structure of A4- 8 meshes was used to represent terrains. This structure defines a parameter space to calculate the coordinates of a field in the R3 Euclidean space. In particular, this paper deals with the problem of modeling spherical terrains. An error metric dependent on the observer and the geometry of the land used for its observation and modeling. The results demonstrate that the use of A4-8 mesh combined with the tangible augmented reality system is flexible to shape spherical terrains and can be easily modified to deal with other topologies, such as the torus and the cylinder. The development of an efficient and intuitive to use method for mesh generation, based on augmented reality markers, is the main contribution of this work.