ACM Transactions on Graphics (Proceedings of Siggraph Asia), 2012

Capturing and Animating the Morphogenesis of Polygonal Tree Models

Sören Pirk¹       Till Niese¹       Oliver Deussen¹       Boris Neubert²

¹University of Konstanz, Germany

²École Polytechnique Fédérale de Lausanne, Switzerland

Abstract

Given a static tree model we present a method to compute deveopmental stages that approximate the tree's natural growth. The tree model is analyzed and a graph-based description of the tree skeleton is determined. Based on structural similarity, branches are added where pruning has been applied or branches have died off over time. Botanic growth models and allometric rules enable us to produce convincing animations from a young tree that converge to the given model. Furthermore, the user can explore all intermediate stages, by selectively applying the process to parts of the tree even complex models can easily be edited. This form of reverse engineering enables users to create rich natural scenes from a small number of static tree models.

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Paper

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Additional Material

	Tree Regions Results		Growth Speed Results		Growth Space Results
	Various Results Results		Seasonal Growth Results

Bibtex

@article{Pirk:2012:CAM:2366145.2366188,
  author     = {Pirk, S\"{o}ren and Niese, Till and Deussen, Oliver and Neubert, Boris},
  title      = {Capturing and animating the morphogenesis of polygonal tree models},
  journal    = {ACM Trans. Graph.},
  issue_date = {November 2012},
  volume     = {31},
  number     = {6},
  month      = nov,
  year       = {2012},
  issn       = {0730-0301},
  pages      = {169:1--169:10},
  articleno  = {169},
  numpages   = {10},
  url        = {http://doi.acm.org/10.1145/2366145.2366188},
  doi        = {10.1145/2366145.2366188},
  acmid      = {2366188},
  publisher  = {ACM},
  address    = {New York, NY, USA},
  keywords   = {animation, generative tree modeling, interactive procedural modeling, 
                plant growth, visual models of trees},
}