I have Sketchup Make and so there is no native OBJ file format export facility. Instead I have installed two extensions to export files as OBJ files. One is called OBJ Exporter but when I try that I get the [Mac] colour wheel of death: it just won’t do it. The other I have installed is the Quad Tools extension and that has a OBJ export facility. I’m exporting into a Photoshop file. The export works fine but the object gets imported into Photoshop without any of the materials I have put on the model. Can anyone explain why and whether there is anything I can do to rectify that? My file is too big to upload here, I’m afraid.