Thorough force resolution analysis of the three-dimensional projected density ρ(x) for a three sine wave initial set-up with ϵ = (3/4, 1/2). A subcube of size L/10 is extracted from the snapshot corresponding to expansion factor a = 0.04 and sampled with 512³ voxels. The nature of the run (Vlasov or PM) and its parameters are detailed in each panel, in particular the spatial resolution n_g of the grid used to solve the Poisson equation. In addition, the resolution n_s of the mesh of vertices employed to construct the initial tessellation is indicated for the Vlasov runs and its analogue n_p for the network of particles in the PM simulations, along with the value of the refinement control parameter I for Vlasov. The spatial resolution scale ε_r = L/n_g represents about 1/102 of the subcube size in the upper right panel; 1/51 in the middle top panel and second row of panels; and 1/26, then 1/13 in the next two rows of panels. For completeness (from top to bottom and left to right), the runs considered are designated respectively as VLA-ANI2-HR, VLA-ANI2-MR, VLA-ANI2-LR, VLA-ANI2-HRS, VLA-ANI2-FHR, VLA-ANI2-MRa, VLA-ANI2-LRa, PM-ANI2-UHR, PM-ANI2-HR, PM-ANI2-MR, and PM-ANI2-LR in Table 1.