3D graphics eBook - Course Materials Repository

Stencil codes 198
Stencils
The shape of the neighborhood used during the updates depends on the application itself. The most common stencils
are the 2D or 3D versions of the Von Neumann neighborhood and Moore neighborhood. The example above uses a
2D von Neumann stencil while LBM codes generally use its 3D variant. Conway's Game of Life uses the 2D Moore
neighborhood. That said, other stencils such as a 25-point stencil for seismic wave propagation [5] can be found, too.
9-point 2D stencil
5-point 2D stencil
6-point 3D stencil
25-point 3D stencil