The basin part of the Piranesi altar, modelled in Zbrush at Voxelstudios

The basin part of the Piranesi altar, modelled in Zbrush at Voxelstudios

The basin part of the Piranesi altar, modelled in Zbrush at Voxelstudios

Detail of the winged lion head on the altar during assembly and prior to moulding

The altar cast in a resin marble mix

Subsequently, the altar was made in bronze with a scagliola top