The definition and rendering of terrain maps
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
The Science of Fractal Images
On Three-Dimensional Surface Reconstruction Methods
IEEE Transactions on Pattern Analysis and Machine Intelligence
The annotated VRML 2.0 reference manual
The annotated VRML 2.0 reference manual
The virtual reality modeling language and Java
Communications of the ACM
Computer rendering of stochastic models
Communications of the ACM
Tutorial: Building Virtual Worlds with VRML
IEEE Computer Graphics and Applications
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
3D terrain simulation based on OpenGL
CEA'09 Proceedings of the 3rd WSEAS international conference on Computer engineering and applications
The study of terrain simulation based on fractal
WSEAS Transactions on Computers
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Several factors currently limit the size of Virtual Reality Modeling Language (VRML) models that can be effectively visualized over the Web. Main factors include network bandwidth limitations and inefficient encoding schemes for geometry and its associated properties. The delays caused by these factors reduce the attractiveness of VRML usage for a large range of virtual reality models, CAD data, and scientific visualizations. To solve this problem, we have tried to decrease the size of data by deploying fractal geometry in VRML standard. A novel approach is proposed for generating a "fractal mountain" using a random Midpoint-Displacement method in VRML standard. Our VRML 2.0 implementation, which is based on two newly defined nodes, TriangleGrid and FractMountain, and uses PROTO mechanism and Java in the Script nodes for the logic, is presented too. It is shown that our approach is more flexible and memory efficient than other approaches for computing mountain structures. Besides, mountains visualized by this approach look much more natural than those generated by other approaches.