关键词: 植物建模, 分形, Alpha测试, 形态学, 风中模拟

Abstract: According to the different features between plant trunks and leaves, fractal method was adopted to draw the branches during simulation process. Through controlling functions to adjust parameters, such as branching growth direction, length, and radius, all kinds of branch structures were created to change the original fractal method in generating results of too regular characteristics. Image method was adopted to draw blades and Alpha test technology was utilized to filter the background of the leaf picture and retain the complex edge and color information. Through the rotating and scaling method, various lifelike leaves were generated. This image-based method was simpler and faster than the graph method. Besides, the process of plant flickering in the wind was approximately simulated according to the branches of different deformation under the influence of wind from morphology point of view.

Key words: plant modeling, fractal, Alpha test, morphology, simulating in wind