Evolution of the density fields of LCDM and SCDM models. Upper panels: density fields of the LCDM model found with a smoothing kernel of radius 2 h⁻¹ Mpc. Middle and lower panels: density fields of the LCDM and SCDM models found with a smoothing kernel with a radius 8 h⁻¹ Mpc. The panels from left to right correspond to epochs z = 30, 10, 3, and 0. Cross sections are shown in a 2 h⁻¹ Mpc thick layer of size 341 × 341 h⁻¹ Mpc. Densities are expressed on a linear scale. Colour scales from left to right in the upper panel are 0.8−1.2, 0.6−1.45, 0.3−2, and 0.1−5.0, and in the middle and lower panels, they are 0.9−1.1, 0.8−1.25, 0.4−1.65, and 0.2−3.0.