1. A method of modeling a reservoir, comprising: receiving a 3D wettability map of the reservoir that is generated from wettability logs of a wettability logging tool disposed in a wellbore; defining, from the wettability map, a local value of wettability for each grid block of a gridded simulation model; and defining, from the local value of wettability, a permeability model and a capillary pressure model for each grid block of the gridded simulation model that is provided to a simulator when modeling the reservoir.