Adding Photographic Touches in Post-production - Photographic Rendering with V-Ray for SketchUp - page 328

Next, we want to do some work on the reflection layer, so let's go ahead and set its
Blend Mode to Add by performing the following steps:
1. Left-click on the Mode dropdown, and then keeping the mouse button down,
select the Add option from the list.
2. Of course, we don't want to add extra reflections to the entire image, so with
the reflection layer selected, let's come up to the Effect menu right at the top
of the After Effects UI, and from the Channel flyout, select the Set Matte op-
tion.