Strands, Gravity and Botanical Tree Imagery

摘要: This paper presents a technique for the modelling and rendering of realistic botanical tree images. A strand model is used that analogous to internal vascular structure tree. The “grown” under simulated influence gravity light. densities at each branching point are determine angles, branch lengths thicknesses, taking into account stored, user definable parameters characterize species being modelled. These address such factors as gravimorphism, phototropism, orthotropism, plagiotropism, planartropism phyllotaxis, distributed according ordering system. Branch segments joints modelled by Bezier splines, with an assumed circular cross-section. Leaves made up from numbers sample ranges vector plane equations. trees rendered using surface sampling algorithm light Z buffer shadows autoregression textures bark grass.