Abstract: In this study, an algorithm based on Voronoi diagram is selected for simulating the wax crack patterns. Firstly, the positions of the Voronoi sites are determined randomly in digital wax printing pattern; then the standard Voronoi diagram is obtained. The Voronoi boundary need to be picked out of the wax region, and taking the intersection of the Voronoi boundary as the starting point. Perlin noise is introduced in the spread direction of the original Voronoi diagram and a new Voronoi boundary is generated. Finally, the real crack effects are achieved via adjusting the coefficients such as numbers and noise. The experimental results show that the proposed method can imitate authentic wax crack patterns with good consistency and network, which meets the characteristics of the real wax printing.

Key words: wax printing design, crack, computer simulation, Voronoi diagram, Perlin noise