Recently, physically-based models have been used to simulate fractures in solid objects. Due to the
finite grid used in this type of simulation, aliasing artifacts occur at fracture edges revealing the structure
of the grid.
We have developed a method for identifying the fractured edges based on the specific grid structure
of the model. We then use arbitrary order Bezier curves to modify the grid structure, concealing it at
fracture edges. This results in a more convincing fracture edge.
John C. Hart,
"Use of curves in rendering fractures", Proc. SPIE 1251, Curves and Surfaces in Computer Vision and Graphics, (1 August 1990); doi: 10.1117/12.19759; https://doi.org/10.1117/12.19759