This 3D model was originally created with Sketchup 7 and then converted to all other 3D formats. Native format is .skp 3dsmax scene is 3ds Max 2016 version, rendered with Vray 3.00 Martini (south facade 1st trans) on a vertical sundial, the 12-hour line upright. Is the sundial exactly facing South it is uurlijnenpatroon left and right of the 12-hour line symmetrical. However, most walls are not exactly facing south, therefore vertical sundials usually an asymmetrical uurlijnenpatroon. Is the sundial exactly to the west or east-facing then there is no 12-hour line and the other hour lines run parallel to each other.