A Study on the Method of Corposing a Virtual World Model Ainiey the Improvement of Rendering Speed

在虚拟现实或各种实时模拟中，重要的是在不牺牲屏幕上渲染图像质量的情况下提高非常复杂环境的渲染时间。我们的研究重点是通过构建虚拟环境来提高渲染性能，从而提高渲染时间。本研究的主要成果如下：1.除了多表示之外，我们还研究了用纹理替换对象。我们发现，这种方法是有效的，除非当视角发生戏剧性变化.我们利用人类的视觉特性简化的原始对象。当对象远离视点，或远离注意力中心，或快速移动时，它们会被简化。我们实施了该系统，并证实了其有效性.实现了一个由三角形组成的对象的动态视图相关的简化/细化算法，该系统可以动态地改变多边形的数量，而不牺牲渲染图像的质量。未来的研究包括一些非常复杂的物体的经验。

In virtual reality or various real-time simulations, it is important to improve the rendering time of very complex environments without sacrificing the quality of the images rendered on the screen. Our research is focused on improving the rendering time through the construction of virtual environments for improving rendering performance. The result of our research is summarized as follows.1. We conduct research on replacing objects with textures in addition to multi-representations. We found out that this approach is effective except when the viewpoint changes dramatically.2. We employed human visual characteristics for simplification of primitive objects. Objects are simplified as they get farther from the viewpoint, or farther from the center of the attention, or they move quickly. We implemented the system and confirmed its effectiveness.3. We implemented the dynamic view-dependent simplification/refinement algorithm for an object composed of triangles, The system can dynamically change the numbers of polygons without sacrificing the quality of rendered image. Future research includes the experience with a number of very complex objects.