Quality Control - Photographic Rendering with V-Ray for SketchUp - page 300

1. In the Current map section, click on the Save button to place the map on
any storage device and/or folder that you like.
2. In my case, I will save it in the Chapter_09 folder under Exercise_Files
|

as

Model_Files

High_Quality_with_Override_material.vrmap .
3. Next, we need to repeat these steps in the Light cache rollout. This makes
exactly the same UI controls available to us, so let's save the Light cache as
High_Quality_with_Override_material.vrlmap .

Tip

Saving these GI solutions to disk is a trick that we can use to eliminate
color bleed completely from our render, given that the GI solutions have
been calculated for the most part using the light grey override material.
Be aware though, that due to both Irradiance mapping and Light cache
being solutions calculated from the camera's point of view, these maps
will only work for the view in which they were created.

You may have noticed that we haven't turned on the Ambient occlusion
option in the Indirect illumination rollout. This is because baking the AO
effect into the final renders means surrendering any kind of control over
it, and generally speaking that is not a good idea. Should we or the client
decide a little later that the AO effect is either too weak or too strong, we
may find that we have to do our high-quality renders all over again.