Research On Virtual Reality Of Living Environment Of Planting Ginseng Under Forest

With a vast territory, the weather condition of China is so complicated too. There is a great difference of the development of different places, the funds for the agriculture is not sufficient either. The investment to the test and research of agriculture is very large. Considering the long growth cycle of the plant, the period of the agriculture test is usually very long. Assisted by the computer technology, we have a series of simulation test to research the growth of the plant, to observe the rules, and to optimize the condition of plant. It's a new method for the agriculture research and a new direction to the growth research of plant.This paper conducts a visual investigation in the northeastern ginseng growth environment. Northeast of China is the main producing areas of ginseng which has strong medicinal value. However, the main method is Deforestation to plant ginseng before the "Natural Forest Protection Project" in the main producing areas of the ginseng, Changbai Mountains, the ecological environment has been seriously damaged and there is a serious problem which is that the ginseng has a great Organic chlorine level. Planting ginseng under the forest is a good way to solve the problem. Planting ginseng under the forest fully use of the land with no pesticide contamination, in this way we can ensure that the production of ginseng is safe, effective and quality. And this topic, Research on Virtual Reality of Living Environment of Planting Ginseng under Forest, is a basic research for the planting ginseng under the forest research.This paper comes up with Graphics theory, and then the research has laid mostly its foci on the agricultural application of virtual environment. Based on the theoretical analysis to the integrative construction of virtual environment, an open and 3D Virtual Environment Platform for Virtual Environments is constructed by the model based on the living environment of ginseng under forest in Northeast China. Based on the related research of the world, corresponding 3D Calculation Method is established, making use of the principle of graphics. In this paper, an open, platform-indepentdent, 3D Rendering Engine was designed and developed by using C++ language.The design of Engine begins at file level, implements step by step from file management, at last renders the screen. During the whole processing, it changes as file management system, decoding system, resource management system and render system in order. The file management, multi-file decoding, memory management, index, search and the render-pipe management/rendering computation are designed and developed with standard C++ to introduce the universality of the engine.The message system provided by the engine provides a big support for the engine's cross-platform by internalize messages. The message provided by engine is internalized which can allow engine to be cross-platform. In addition, the mathematical operations, including matrix, quaternion, Interpolating, Fast mathematics triangle operation and ect, which are used to Optimum Intel CPU, provide strong power to the running of engine in the special platform.Rendering engine which provides a multi-source rendering method and use perspective for 3D calculations makes the 3D model described more convenient. The open management for the model data makes the combine between rendering engine and variety of scene managements more easily. And on this basis, the virtual reality of living environment of planting ginseng under forest is one of the applications.The virtual environment research of the living environment of ginseng under forest mainly concludes that the 3D-terrain visualization of the ginseng under forest,the visualization of the sky and the visualization of the environment of the forest,these three models.The visualization of the terrain support the no border restrictions on the specifications of the large terrain simulation and it includes three different technology to exaggerated terms namely the normality-mode, lod-mode and tile-mode. And a representative cube sky box is examplified to simulate the sky. The'forest'was imported by a 3D general model and 3DS documents .The usage of the model datas in the engine includes the terrain and sky, and all the datas are employed with normal formats and the other applied software, ensuring the system a good expansibility.Finally, there is an expectation for the research on virtual reality of living environment of planting ginseng under forest and the main research direction for the next step in the article. The system can be applied to simulate the light of planting ginseng under forest, growth models and other models.