# Automatic Meshing for Voxels

The automatic mesh sizes for voxels when using the coarse, standard and fine mesh options.

For voxels, the wavelength (λ) is determined based on the maximum simulation frequency and the medium properties of the region. The specified size is applied to the voxel edge length.

Type Fine Standard Coarse
Finite difference time domain (FDTD) $\frac{\lambda }{28}$ $\frac{\lambda }{20}$ $\frac{\lambda }{14}$