1. A computer-implemented method, comprising: receiving at least one training frame that includes training animation data representative of target real-time cloth dynamics; simulating a first coarse-level cloth mesh of a given surface, based on the training animation data; simulating a fine-level cloth mesh of the given surface, based on the training animation data and one or more tracking constraints, wherein the one or more tracking constraints constrain the simulation of the fine-level cloth mesh to generating a surface representative of the first coarse-level cloth mesh; computing, by operation of one or more computer processors, a linear upsampling operator based on the first coarse-level cloth mesh and the fine-level cloth mesh of the given surface; processing a second coarse-level cloth mesh, distinct from the first coarse-level cloth mesh, using the linear upsampling operator to create a second fine-level cloth mesh of the given surface; and rendering one or more images depicting the second fine-level cloth mesh.