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Analytically-Defined Collaborative Shape Modeling in VRML

Q. Liu, A. Sourin
2004 International Conference on Cyberworlds  
In this paper we introduce a function-defined extension of Virtual Reality Modeling Language where analytical formulas are used for defining geometry and appearance of 3D shapes.  ...  In our model, these very different analytical representations can be used concurrently for defining geometry and appearance of the shapes.  ...  Framework of analytically-defined shape modeling Defining shapes with analytical formulas is the most straightforward method of function-based shape modeling.  ... 
doi:10.1109/cw.2004.21 dblp:conf/cw/LiuS04 fatcat:rvsr7ark6jdl3dtrd3v3xxv23u

Function-based representation of complex geometry and appearance

Qi Liu, Alexei Sourin
2005 Proceedings of the tenth international conference on 3D Web technology - Web3D '05  
In our hybrid function-based web visualization model, these very different analytical representations can be used concurrently for defining geometry and appearance of the shapes.  ...  In this extension, analytical functions are used for defining geometry and appearance of 3D shapes, as well as transformations of them.  ...  The Collaborative Shape Modeling Laboratory is implemented in one VRML file.  ... 
doi:10.1145/1050491.1050509 dblp:conf/vrml/LiuS05 fatcat:atgsijr3nrfbjh5ufirmy3esly

From a Small Formula to Cyberworlds [chapter]

Alexei Sourin
2005 Lecture Notes in Computer Science  
Collaborative Shape Modeling Laboratory, which is a part of the Virtual Campus, is based on this extension. It is developed to help students with their computer graphics assignments.  ...  This is a place for research and education, fun and immersion in campus life. Besides standard VRML, its hybrid function-based extension is used in the design of Virtual Campus.  ...  The result of the modeling can be either saved in the proprietary function-based data format or in the func-tion-based VRML code for further use in the Collaborative Shape Modeling Hands-On Experience  ... 
doi:10.1007/11424857_106 fatcat:6e2z3zjqrncmfcvqjarbosmdju

Visual Immersive Haptic Mathematics in Shared Virtual Spaces [chapter]

Alexei Sourin, Olga Sourina, Lei Wei, Paul Gagnon
2009 Lecture Notes in Computer Science  
When teaching subjects richly infused with mathematics, in particular geometry, topology and shape modeling, there is a frequent problem that the learners are not able to "visualize" the attendant theoretical  ...  Only mathematical formulas are used by the learners for immediate interactive definition of geometry, appearance and physical property of the shapes being created in the virtual environment.  ...  Acknowledgements This project is supported by the Singapore National Research Foundation Interactive Digital Media (NRF IDM) grant "Visual and Haptic Rendering in Co-Space".  ... 
doi:10.1007/978-3-642-00212-0_1 fatcat:rjhrc3agvza33ccndqzv5ela2i

Function-based shape modelling extension of the Virtual Reality Modelling Language

Qi Liu, Alexei Sourin
2006 Computers & graphics  
The function-based extension of VRML is used for collaborative shape modelling as well as for building shared virtual worlds. r  ...  In this implementation, parametric implicit and explicit analytical formulae are used for defining geometry and appearance of three-dimensional (3D) shapes.  ...  Fig. 19 . 19 Collaborative Shape Modelling Hands-On Experience.  ... 
doi:10.1016/j.cag.2006.03.006 fatcat:nymap6ukifdatdfeq2nd5mvxv4

Function-based time-dependent shape modeling on the Web

Qi Liu, A. Sour
2005 2005 International Conference on Cyberworlds (CW'05)  
Shape's geometry, 3D texture, color and transformations can be defined with analytical functions typed straight in VRML code. These analytical functions can be functions of time.  ...  FVRML allows us to greatly extend the abilities of VRML with a very intuitive approach to shape modeling based on using analytical functions.  ...  Figure 2 . 2 Geometric morphing #VRML V2.0 utf8 Figure 5 . 5 Parametric Metamorphoses in Collaborative Shape Modeling Laboratory Texture shape Color shape shapeshape Proceedings of the 2005 International  ... 
doi:10.1109/cw.2005.47 dblp:conf/cw/LiuS05 fatcat:5jcyipjm3zdtjeqsfwfutsjhau

Visual immersive haptic mathematics

Alexei Sourin, Lei Wei
2009 Virtual Reality  
Since the function-defined models are small in size, it is possible to perform their collaborative interactive modifications with concurrent synchronous visualization at each client computer with any required  ...  It allows the learners to get immersed within the 3D scene and explore the shapes which are being modeled visually and haptically.  ...  Acknowledgments This work was supported by the Singapore National Research Foundation Interactive Digital Media R&D Program, under research Grant NRF2008IDM-IDM004-002 ''Visual and Haptic Rendering in  ... 
doi:10.1007/s10055-009-0133-2 fatcat:rojrryjfe5fprf5d3kcjkbzqu4

Function-based visualization and haptic rendering in shared virtual spaces

Lei Wei, Alexei Sourin, Olga Sourina
2008 The Visual Computer  
Since the function-defined models are small in size, it is possible to perform their collaborative interactive modifications with concurrent synchronous visualization at each client computer with any required  ...  We define geometry, appearance and tangible physical properties of the solid objects by implicit, explicit and parametric functions straight in the VRML/X3D code or in loadable libraries.  ...  and MOE grant RG10/06 "Visual and Force Feedback Simulation in Nanoengineering and Application to Docking of Transmembrane a-Helices."  ... 
doi:10.1007/s00371-008-0285-1 fatcat:bs5yh4twfzdi7dueee74iixiem

Function-Based Haptic Interaction in Cyberworlds

Lei Wei, Alexei Sourin, Olga Sourina
2007 2007 International Conference on Cyberworlds (CW'07)  
We define geometry, appearance and density of the solid objects by implicit, explicit and parametric functions straight in the VRML/X3D code or in dynamic-link libraries.  ...  Since the function-based models are small in size, it is possible to perform their collaborative interactive modifications with concurrent synchronous visualization at each client computer with any required  ...  and MOE grant RG10/06 "Visual and Force Feedback Simulation in Nanoengineering and Application to Docking of Transmembrane a-Helices".  ... 
doi:10.1109/cw.2007.22 dblp:conf/cw/0002SS07 fatcat:wkkckrs7bzgubdzxj6w7ksixyu

Function-Based Haptic Interaction in Cyberworlds

Lei Wei, Alexei Sourin
2011 2011 International Conference on Cyberworlds  
We define geometry, appearance and density of the solid objects by implicit, explicit and parametric functions straight in the VRML/X3D code or in dynamic-link libraries.  ...  Since the function-based models are small in size, it is possible to perform their collaborative interactive modifications with concurrent synchronous visualization at each client computer with any required  ...  and MOE grant RG10/06 "Visual and Force Feedback Simulation in Nanoengineering and Application to Docking of Transmembrane a-Helices".  ... 
doi:10.1109/cw.2011.19 dblp:conf/cw/WeiS11 fatcat:fe4lzqkyvzazna4aacytmoavdu

Function-defined shape metamorphoses in VRML

Qi Liu, Alexei Sourin
2005 Proceedings of the 3rd international conference on Computer graphics and interactive techniques in Australasia and South East Asia - GRAPHITE '05  
Shape's geometry, 3D texture, color and transformations changing through time can be defined with analytical functions typed straight in VRML code.  ...  FVRML allows us to greatly extend the abilities of VRML with a very intuitive approach to shape modeling based on using analytical functions.  ...  The snapshot of the graphics window of the interactive collaborative modeling session at the Virtual Shape Modeling Laboratory, which is a part of the Virtual Campus, is shown in Figure 4a .  ... 
doi:10.1145/1101389.1101458 dblp:conf/graphite/LiuS05 fatcat:p5hexk5l4basvddwaljimc2qsu

Nanyang Technological University virtual campus [virtual reality project]

A. Sourin
2004 IEEE Computer Graphics and Applications  
It requires an extension of VRML, which allows for defining shapes with parametric, explicit, and implicit analytical formulas.  ...  The geometry, color, and texture of the shape can be interactively defined with analytical formulas written in C-style syntax.  ... 
doi:10.1109/mcg.2004.57 pmid:15580829 fatcat:akuksm4awffhtdh77rdcn3ln6i

Cyber-Learning in Cyberworlds

Alexei Sourin, Olga Sourina, Ekaterina Prasolova-Førland
2006 Journal of Cases on Information Technology  
The result of the modeling can be either saved in the proprietary function-based data format or in the function-based VRML code for further use in the Collaborative Shape Modeling Laboratory or in other  ...  The initial basic shape for modeling can be either defined analytically, or created interactively with simple basic shapes (Figure 7 ).  ... 
doi:10.4018/jcit.2006100105 fatcat:ustfasqqufhk5br5t4axxk6wdm

Function-defined shape metamorphoses in visual cyberworlds

Qi Liu, Alexei Sourin
2006 The Visual Computer  
In this paper, we present function-based extensions of VRML and X3D, which allow for time-dependent shape modeling on the web.  ...  Our shape modeling approach is based on the concurrent use of implicit, explicit and parametric functions defining geometry, appearance and their transformations through time.  ...  Function-based extension of VRML and X3D 2.1 Hybrid function-based approach to shape modeling Hybrid function-based shape modeling in VRML was introduced in [7, 9, 10] .  ... 
doi:10.1007/s00371-006-0044-0 fatcat:3krudg3brrdd7gcfotuccoxf2y

Towards a Definition of Virtual Objects Using Partial Differential Equations

Hassan Ugail, Gabriela González Castro, Alexei Sourin, Olga Sourina
2009 2009 International Conference on CyberWorlds  
Our mathematical model allows to define objects by only providing coordinates of the section curves in 3-space.  ...  We describe the modeling framework and illustrate the proposed theoretical concepts with our function-based extension of VRML and X3D.  ...  Co-Space" and the UK EPSRC Grant EP/G067732/1 "Function based Geometry Modeling within Visual Cyberworlds".  ... 
doi:10.1109/cw.2009.8 dblp:conf/vw/UgailCSS09 fatcat:amcgac4vcbh6tdm6wyguqk5knq
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