Volume 37, Issue 2 pp. 485-495
Modeling and Visualization

Controllable Dendritic Crystal Simulation Using Orientation Field

Bo Ren

Bo Ren

College of Computer and Control Engineering, Nankai University, Tianjin, China

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Jiahui Huang

Jiahui Huang

Department of Computer Science and Technology, Tsinghua University, Beijing, China

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Ming C. Lin

Ming C. Lin

Department of Computer Science, UNC Chapel Hill, USA

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Shi-Min Hu

Shi-Min Hu

Department of Computer Science and Technology, Tsinghua University, Beijing, China

School of Computer Science and Informatics, Cardiff University, UK

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First published: 22 May 2018
Citations: 9

Abstract

Real world dendritic growths show charming structures by their exquisite balance between the symmetry and randomness in the crystal formation. Other than the variety in the natural crystals, richer visual appearance of crystals can benefit from artificially controlling of the crystal growth on its growing directions and shapes. In this paper, by introducing one extra dimension of freedom, i.e. the orientation field, into the simulation, we propose an efficient algorithm for dendritic crystal simulation that is able to reproduce arbitrary symmetry patterns with different levels of asymmetry breaking effect on general grids or meshes, including spreading on curved surfaces and growth in 3D. Flexible artistic control is also enabled in a unified manner by exploiting and guiding the orientation field in the visual simulation. We show the effectiveness of our approach by various demonstrations of simulation results.

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