Line integral convolution visualisation of the second core formed from the collapse of a 1 M_⊙ cloud core at an initial temperature T₀ of 10 K and an outer radius of 3000 au. Top to bottom panels: results from runs using different resolutions in an increasing order as indicated in the legends. The entropy behaviour is shown at a snapshot when the central densities are roughly similar. For the results presented in this paper, we use the highest resolution, which allows us to resolve the convective eddies within the second core.