Presenting Your Design - Autodesk Infraworks and Infraworks 360 Essentials - page 209

water reflections Enable this setting if, for instance, you want to see a
reflection of a building on the surface of pond (see Figure 6.7). Of course, the
calculations required to produce the reflections require more computing power
and may slow down the performance of the model.
fIgure 6.7 In the image on the top, Water Reflections, Realistic Water, and Shadows are all
disabled, while in the image on the bottom they are all enabled.