Thea for SketchUp provides you with two different ways of controlling Depth of Field (DoF). Sharpness and f-number. In this article we will be looking at both options and also mention the rest of the parameters.
Tracing Depth is the most important parameter for Presto (MC) engine, due to the fact that it plays a significant role in the overall look of the scene and of course, render times. The default value (5) is perfect for scenes with low complexity.