An exemplary virtual reality media provider system differentiates static objects depicted in two-dimensional video data from dynamic objects depicted in the two-dimensional video data. Based on the differentiating of the static objects from the dynamic objects, the virtual reality media provider system generates dynamic volumetric models of the surfaces of the static objects and the dynamic objects. The virtual reality media provider system updates the dynamic volumetric models of the surfaces of the static objects with a lower regularity or on an as-needed basis, and the virtual reality media provider system separately updates the dynamic volumetric models of the surfaces of the dynamic objects with a higher regularity. The higher regularity is higher than the lower regularity and keeps the dynamic volumetric models of the surfaces of the dynamic objects up-to-date with what is occurring in the two-dimensional video data. Corresponding methods and systems are also disclosed.