Infrared dust emission from a time series of snapshots for 3D-3-by7 showing, from top to bottom, respectively, 24 µm emission for projection along ẑ, 70 µm emission for projection along ẑ, 24 µm emission for projection along ŷ and 70 µm emission for projection along ŷ. The linear colour scale is in units of MJy ster⁻¹, and note that the two different observation wavelengths have different colour scales. Snapshots are shown from left to right ever 0.08 Myr from 0.15 Myr to 0.47 Myr. The star symbol shows the location of the star at the origin.