Henriques, FredericoBailão, AnaBordalo, RuiGac, Agnès LeGonçalves, AlexandreCardeira, LilianaCandeias, AntónioVieira, Eduarda2019-04-172019-04-172018Henriques, F., Bailão, A., Bordalo, R., Gac, A., Gonçalves, A., Cardeira, L.,… Candeias, A. (2018). Mapping lacunae for retouching paintings with computer graphics software. In 4th International Meeting on Retouching of Cultural Heritage - RECH4, Split, Croatia, 20-21 October 2017. (pp. 130-136). Porto: IIC, 2018http://hdl.handle.net/10400.14/27457The objective of this paper is to present a workflow procedure to support the graphic recording of the operations performed during the retouching process involved in paintings. In this particular context, an orthophotography of a portrait painted on canvas from a university museum collection was used in Blender, a free and open-source 3D creation software suite. Blender uses an important metric coordination value, provided by the 3D workspace software that allows the areal characterization and numeric identification of each surface loss. The step-by-step procedure adopted to document and map lacunae in this artwork for subsequent retouching, is described.engGraphic recordingRetouchingDocumentationPaintingOrtho-imageBlenderconference object