Snapshot of the 3D white dwarf simulation at T_eff ~ 8000 K and log g = 8. Left: temperature structure for a slice in the horizontal-vertical xz plane through a box with coordinates x,y,z (in km). The temperature is colour coded from 14 000 (red) to 3000 K (blue). The arrows represent relative convective velocities, while thick lines correspond to contours of constant Rosseland optical depth, with values given in the figure. Right: emergent bolometric intensity at the top of the horizontal xy plane. The rms intensity contrast with respect to the mean intensity is 7.6%. The length of the bar in the top right is 10 times the pressure scale height at τ_R = 2/3.