Open Workflows for Polychromatic Reconstruction of Historical Sculptural Monuments in 3D

Many historical monuments were originally vividly painted (polychromatic), and researchers have been able to reach consensus on this even for monument classes in which only indirect evidence of painting survives. However, academic caution has led to an understandable reluctance to pass this knowledge to the public through use of reconstructions showing the colour schemes of these monuments. As a result, use of polychromatic reconstruction has been very limited and has made a significant impact on public perception for the classical period, with insignificant progress for many other important monument classes. We argue that large-scale projects to create digital reconstructions are inevitable but that adoption of open workflows is vitally important to achieve the objectives of the London Charter. We demonstrate a practical workflow with two medieval stone crosses.