A method can include receiving points representative of at least a portion of a surface of a multi-dimensional geobody; partitioning the points; computing smooth compactly supported basis functions based at least in part on differential surface areas associated with the partitioning of the points; approximating an indicator function for a body based at least in part on the computed basis functions; and, based at least in part on values of the approximated indicator function, generating a mesh that represents a surface of the body.