基于模型子对象和改进型纹理的植物模型

Plant Model Based on Sub-object Model and Improved Texture

虚拟植物的构建在环境资源评估、农作物栽培研究、植物生长调控以及生态自动化测评等方面都有重要的价值和意义。为克服传统虚拟植物造型技术中因重点反映植物枝叶间复杂性相互关系而带来的繁杂与低效率,本文以植物主干关键造型节点为构建基点,通过模型子对象组建的形式兼顾了植物形态的真实性与模拟效率;通过造型因子和色彩因子对植物叶片纹理的形态和颜色进行干预,改进了传统纹理图像影射方式模拟植物叶片的方法。实验结果表明,该方法能有效地实现虚拟植物的复杂造型,模拟的真实感和系统实时性两方面都得以有效的保证。

The construction of virtual plant is significant to environmental resource assessment,research of crops cultivation,plant growth regulation and automated evaluation of the ecology.Because of the focus is to reflect the complexity of the relationship between leaves and branches,the traditional virtual plant modeling technology is complex and inefficient.In order to overcome this defect,the paper based on the key nodes of plant trunk,improved the modeling similarity and efficiency by assembling of sub-object model.The paper improves the traditional mapping mode of leaves simulation by texture image,intervenes the form and color by modeling factor and color factor.The simulation experimental results show that the modeling method is effective in simulating the plant complex conformation,which assurance the high-similarity and the feature of real time system response.