Lighting an Interior Daytime Scene - Photographic Rendering with V-Ray for SketchUp - page 41

Note
I would, at this point, encourage you to use every opportunity that you come
across in this project to take the essence of what you learn in a particular chapter
and then make use of it in any of the various versions of this scene that you
have been supplied with. The more you experiment, the more sense the points
we cover in this topic will make.
Currently, all of the settings in the start scene are set to V-Ray defaults; in fact, the
only work done so far has been the application of two V-Ray Standard materials to
the scene geometry using RGB values of 88, 88, and 88 on the exterior material and
178, 178, and 178 for the interior version. These settings give us grayscale materials
that have reflectance values of around 35 and 70 percent, respectively, which will be
a big help to us as we set up our initial lighting for the scene.