VRTree: Example-Based 3D Interactive Tree Modeling in Virtual Reality

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Date
2024
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Journal ISSN
Volume Title
Publisher
The Eurographics Association and John Wiley & Sons Ltd.
Abstract
We present VRTree, an example-based interactive virtual reality (VR) system designed to efficiently create diverse 3D tree models while faithfully preserving botanical characteristics of real-world references. Our method employs a novel representation called Hierarchical Branch Lobe (HBL), which captures the hierarchical features of trees and serves as a versatile intermediary for intuitive VR interaction. The HBL representation decomposes a 3D tree into a series of concise examples, each consisting of a small set of main branches, secondary branches, and lobe-bounded twigs. The core of our system involves two key components: (1) We design an automatic algorithm to extract an initial library of HBL examples from real tree point clouds. These HBL examples can be optionally refined according to user intentions through an interactive editing process. (2) Users can interact with the extracted HBL examples to assemble new tree structures, ensuring the local features align with the target tree species. A shape-guided procedural growth algorithm then transforms these assembled HBL structures into highly realistic, finegrained 3D tree models. Extensive experiments and user studies demonstrate that VRTree outperforms current state-of-the-art approaches, offering a highly effective and easy-to-use VR tool for tree modeling.
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CCS Concepts: Computing methodologies → Shape modeling; Virtual reality; Graphics systems and interfaces

        
@article{
10.1111:cgf.15254
, journal = {Computer Graphics Forum}, title = {{
VRTree: Example-Based 3D Interactive Tree Modeling in Virtual Reality
}}, author = {
Wu, Di
and
Yang, Mingxin
and
Liu, Zhihao
and
Tu, Fangyuan
and
Liu, Fang
and
Cheng, Zhanglin
}, year = {
2024
}, publisher = {
The Eurographics Association and John Wiley & Sons Ltd.
}, ISSN = {
1467-8659
}, DOI = {
10.1111/cgf.15254
} }
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