Boundary-dominant flower blooming simulation

This paper presents a new simulation method for flower blossom, which is based on a biological observation that flower opening is caused by a boundary-dominant morphological transition in a curved lamina. We use an elastic triangular mesh to represent a flower petal and adopt the in-plane expansion to induce the global bending. Out-of-plane curl plays an auxiliary role in reducing the curvatures of cross-sections. We also propose to adapt semi-implicit Euler time integrator for fast simulation results, which has intrinsic damping and at least one order precision. Our system allows users to ∗Haiyi Liang, CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China. Email: [email protected] 1 specify only a growth curve to control the blossom and the curve is easy to design due to the boundary-dominant property. Experimental results show that our system runs faster and generates more realistic and convincing blossom results than the existing methods.