ACM Transactions on Graphics (Proceedings of SIGGRAPH), 2024

Interactive Invigoration:
Volumetric Modeling of Trees with Strands

      Bosheng Li1       Nikolas A. Schwarz2       Wojtek Pałubicki3       Sören Pirk2       Bedrich Benes1      

1Purdue University, USA
2CAU, Germany
3AMU, Poland





Abstract

Generating realistic models of trees and plants is a complex problem because of the vast variety of shapes trees can form. Procedural modeling algorithms are popular for defining branching structures and steadily increasing their expressive power by considering more biological findings. Most existing methods focus on defining the branching structure of trees based on skeletal graphs, while the surface mesh of branches is most commonly defined as simple cylinders. One critical open problem is defining and controlling the complex details observed in real trees. This paper aims to advance tree modeling by proposing a strand-based volumetric representation for tree models. Strands are fixed-size volumetric pipes that define the branching structure. By leveraging strands, our approach captures the lateral development of trees. We combine the strands with a novel branch development formulation that allows us to locally inject vigor and reshape the tree model. Moreover, we define a set of editing operators for tree primary and lateral development that enables users to interactively generate complex tree models with unprecedented detail with minimal effort.

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Bibtex

@article{Li:2024:InteractiveInvigoration,
  author    = {B. Li, N. Schwarz, W. Palubicki, S. Pirk, B. Benes},
  title     = {Interactive Invigoration: Volumetric Modeling of Trees with Strands},
  journal   = {ACM Transaction on Graphics},
  year      = {2024},
  month     = {},
  volume    = {},
  number    = {},
  doi       = {},
  publisher = {ACM},
  address   = {New York, NY, USA}
}