Cyril Jover and Mathieu Muller of Unity Technologies discuss their photogrammetry workflow at Siggraph 2017. Here they present the technology behind the de-lighting tool and how to get started with photogrammetry.  You can see how they take advantage of the benefits of Artomatix (About 23 minutes into the presentation). For a detailed look at the range of features in the ArtEngine tool from Artomatix, head to the product overview page: https://artomatix.com/create-overview.php