1. A method for utilizing adaptive rectangular decomposition (ARD) to generate a head-related transfer function (HRTF), the method comprising: obtaining a mesh model representative of head and ear geometry of a listener entity, wherein obtaining the mesh model includes capturing images of a head and ear geometry of the listener entity and conducting dense modeling processing on the captured images to generate a three-dimensional (3D) mesh model; segmenting a simulation domain of the mesh model into a plurality of partitions; conducting an ARD simulation on the plurality of partitions to generate simulated sound pressure signals within each of the plurality of partitions; and processing the simulated sound pressure signals to generate at least one HRTF that is customized for the listener entity.