CAJ | 학술논문

高真实度大场景植物仿真技术一直是景观表现中虚拟植物仿真建模和渲染研究的热点和难点。提出了一套从贴图数据采集，植物仿真建模到高仿真森林景观表现的完整解决方案。该方案从竹林形态特征结构、贴图数据采集、自然生长环境三个方面实现竹林的高仿真表现。通过竹叶形态、竹叶分布、模型面数、多角度还原度等因素的不断对比和改进，形成三套凤尾竹建模方案。根据渲染时间和内存使用的数据对比，得到了资源最优化真实度最大化的建模方法，解决了大规模虚拟森林模型运算的速度问题；根据云南当地凤尾竹林的实际景观，利用多层次混合光照模拟技术搭建完整的竹林场景，解决了现实环境中复杂的光照模拟问题。最终实现了在提高渲染速度的前提下依然保证高仿真的竹林景观表现效果的目标。
고진실도대장경식물방진기술일직시경관표현중허의식물방진건모화선염연구적열점화난점。제출료일투종첩도수거채집，식물방진건모도고방진삼림경관표현적완정해결방안。해방안종죽림형태특정결구、첩도수거채집、자연생장배경삼개방면실현죽림적고방진표현。통과죽협형태、죽협분포、모형면수、다각도환원도등인소적불단대비화개진，형성삼투봉미죽건모방안。근거선염시간화내존사용적수거대비，득도료자원최우화진실도최대화적건모방법，해결료대규모허의삼림모형운산적속도문제；근거운남당지봉미죽림적실제경관，이용다층차혼합광조모의기술탑건완정적죽림장경，해결료현실배경중복잡적광조모의문제。최종실현료재제고선염속도적전제하의연보증고방진적죽림경관표현효과적목표。
The research of high-fidelity simulation technology in plant modeling and rendering of virtual large scale forest landscape is a hot and difficult point in landscape performance. This paper proposes a complete solution, which contains collecting texture data, plant simulation modeling and high-fidelity forest simulation of landscape performance. This solution focuses on three aspects of high-fidelity simulation, they are bamboo morphological structure, texture data collection and the natural habitat. With continuously comparing and improving the key elements of bamboo modelling, such as the shape and distribution of bamboo leaves, the faces of model, and the simulation of different perspectives, it proposes three plans of bamboo modelling. According to the comparison of the time of rendering and the usage of memory, it gets the balance method of maximum efficiency and high-fidelity, which solves the computing speed of virtual large scale landscape. According to the real bamboo landscape in Yunnan Province, it uses the multi-layer hybrid illumination simulation technology to build a complete bamboo landscape. This research approaches the target of ensuring high-fidelity forest landscape simulation with improving rendering speed.