关键词: 植物, 火焰, 可视化, 交互过程

Abstract: At present, the research of the interactive process between plants and the flame mainly focuses on the visual simulation of forest fire scenario, but it is lack of the study on description of the interaction of individual plants and flame in detail. Aiming at this issue, this paper proposed a visual solution to model the process of a single plant burning. We established a plant model based on the branch node relationship and used particle system to model the flame. We set up a distance temperature field around a flame by using bounding sphere, and used a collision detection algorithm to judge whether the branches around the flame met the combustion conditions, the flames next to the current flame met the conditions of the flame merger. The stress of branches bending was analyzed, and an algorithm based on dynamics to simulate the branches bending deformation caused by flames action was proposed. To describe the process of color changing of branches, we proposed an algorithm based on texture mapping. Through adjusting the parameters of the plant, the initial burning point and the initial size of a flame, the dynamic burning scene of a single plant can be vividly simulated by using the methods proposed in this article.

Key words: plant, flame, visualization, interactive process