Interactive Modeling and Authoring of Climbing Plants

Abstract

Figure 1: An example of a modeling and editing session of a set of climbing plants. The user places seeds to initiate the plant growth (left). The user then draws attractors on the object surface. The plants grow on the surface and dynamically react to environmental changes (middle). The user interactively removes parts of the plant during the growth to make the windows and the lights of the car visible (right). AbstractWe present a novel system for the interactive modeling of developmental climbing plants with an emphasis on efficient control and plausible physics response. A plant is represented by a set of connected anisotropic particles that respond to the surrounding environment and to their inner state. Each particle stores biological and physical attributes that drive growth and plant adaptation to the environment such as light sensitivity, wind interaction, and physical obstacles. This representation allows for the efficient modeling of external effects that can be induced at any time without prior analysis of the plant structure. In our framework we exploit this representation to provide powerful editing capabilities that allow to edit a plant with respect to its structure and its environment while maintaining a biologically plausible appearance. Moreover, we couple plants with Lagrangian fluid dynamics and model advanced effects, such as the breaking and bending of branches. The user can thus interactively drag and prune branches or seed new plants in dynamically changing environments. Our system runs in real-time and supports up to 20 plant instances with 25k branches in parallel. The effectiveness of our approach is demonstrated through a number of interactive experiments, including modeling and animation of different species of climbing plants on complex support structures.

Urban Microclimate Canopy: Design, Manufacture, Installation, and Growth Simulation of a Living Architecture Prototype

“…Particularly, climbing plant models adapted from L-systems can be sensitive to some environmental factors, for example light [37] or gravity and collisions [38]. By introducing physical engines, the branches of the climbing plants acquire interactions with the wind [39]. These models Regarding step 2 of the planned iterative design process, corresponding functional-structural plant models (FSPM) are required to depict plants' 3D presentation based on physiological processes [30].…”

“…Particularly, climbing plant models adapted from L-systems can be sensitive to some environmental factors, for example light [37] or gravity and collisions [38]. By introducing physical engines, the branches of the climbing plants acquire interactions with the wind [39]. These models are well applied in the computer game and film industries.…”

Local Editing of Procedural Models

“…Another concept is to enable the user to change a model while it is derived, to interleave procedural and interactive editing. This has been proposed for plant modeling [HBDS17], street modeling [CEW * 08], and ecosystem modeling [EVC * 15].…”

Statistical Modeling of the 3D Geometry and Topology of Botanical Trees

“…Finally, several techniques have been proposed to model the effect on the shape and growth of trees of external stresses such wind [PNH * 14] and obstacles [HBDP17]. Others considered the problem of animating trees and plants [QYH * 17,HBDP17]. Our approach focuses on the process of creating 3D tree models.…”