The obvious extension of bilinear interpolation to three dimensions is called trilinear interpolation. ROP can also perform trilinear and anisotropic filtering on all texture formats. On each staggered grid we perform [trilinear interpolation] on the set of points. Examples shown below use two kinds of homogeneous coordinates&colon; trilinear and barycentric. Areal and trilinear coordinates are used for similar purposes in geometry. It is trilinear and vanishes identically if is associative. The other coordinates can be easily derived using the cyclicity property of trilinear coordinates. Also for each center only the first trilinear coordinate f(a,b,c) is specified. "P" having trilinear coordinates as given above. Trilinear coordinates are an example of homogeneous coordinates. Trilinear coordinates enable many algebraic methods in triangle geometry. Full Scene Anti-Aliasing (FSAA) and Trilinear/Anisotropic filtering were also present. It is impossible for all three trilinear coordinates to be non-positive. The name "trilinear coordinates" is sometimes abbreviated to "trilinears". Trilinear interpolation is a method of multivariate interpolation on a 3-dimensional regular grid.