网络环境中虚拟树木的建模和实时渲染研究

Virtual Trees Real Time Modeling and Rendering Based on Internet

在网络环境中虚拟树木表现技术上,如何达到网络传输的实时性和视觉效果的平衡一直是国内外学者研究的热点。论文基于Java3D技术,提出了一种web环境下虚拟树木的实时建模和渲染方法。该方法以树木特性为依据设计了虚拟树木场景结构以及基于web的虚拟树木建模算法。在树木场景创建以及渲染过程中采用多种优化技术如面片建模、LOD方法等既保证视觉效果又有效减少场景面片数以加速场景的漫游显示速率。经过测试,构建的基于Web的虚拟树木场景不但具有较强的真实感及良好的交互性,而且满足网络实时传输的要求。

In the area of the construction of web - based virtual trees, how to balance real - time web transmission and realistic is the hot spot of native and foreign scholars. A solution was proposed in this paper to solve the above issue. According to tree characteristics, virtual tree scene structure and a modeling algorithm of web - based virtual tree are designed and implemented. Optimization techniques such as Polygon -modeling , LOD are applied in scene creating and rendering process to ensure the realistic , as well as reduce scene calculation amount for accelerating roaming rate. Results from the experiments show that the scene was prone to web transmission with more realistic and better human - computer interaction. Therefore, the solution discussed above was viable.