Lighting an Interior Daytime Scene - Photographic Rendering with V-Ray for SketchUp - page 60

Using Rectangle lights
The basic premise of this approach is that we place a V-Ray rectangle light over
every opening that leads from an interior room to the outside environment. In the
case of our project scene, this would mean giving coverage to the circular skylights,
the doors and also the elongated windows we see in the two long gallery rooms.
Obviously, setting up all of the 12 required lights in the scene would take quite a
while and result in a lot of unnecessary repetition in our text here. So, for the sake
of speed I have prepared a scene that already has most of the work done. I have,
however, left us with just one final light to add to the mix. This will give us an op-
portunity to take a look at how we both create and set up the options for the V-Ray
Rectangle light type.
Note
If you prefer, however, it would be perfectly fine for you to go ahead and place all
of the rectangle lights in the scene using the same basic steps that we will cover
in the next section.
From your Exercise_Files folder, open up the Daylight_Interior_03.skp
file.
A quick examination of the scene shows that we already have lights placed over the
skylights, the doors, and in one of the long gallery windows (north facing). All that
remains is to add one last rectangle light to the south-facing gallery window. To do
just that, let's first of all perform the following steps:
1. Select the South Facing Gallery Exterior Scene tab to get ourselves into a
good position to place the light.
2. Then, select the Rectangle light button from the V-Ray lights toolbar to enter
light creation mode.
3. Now, we can move our mouse cursor to the outer upper-left corner of the gal-
lery window and left-click once to start creating the light.
4. Then, we want to move the cursor to the point in the outer bottom-right corner
of the window and left-click a final time to both finish creating the light and at
the same time exit the create mode.