Graphics Programs Reference
In-Depth Information
Note
If you aren't sure whether a material has actually taken on its new as-
signment, just deselect everything in the scene by coming up to the
Edit
menu and apply the
Select None
command (shortcut
Ctrl
+
T
). Then,
right-click on the material name in the editor list and choose the
Select
All Objects Using This Material
command. If the assignment has taken,
your objects will again become selected.
Unlike with the Standard material, the Reflection and Refraction properties of the V-
Ray Material are built in and so do not require additional layers to be added, but of
course they are controlled by means of the same greyscale values to determine the
intensity with which each of these properties will be seen in the material. Black, the
default here, gives no reflections and/or refractions at all, while white takes things in
the opposite direction, producing reflections and/or refractions at full strength.
As glass is a material that has both reflective and refractive properties, let's perform
the following steps:
1. In the
Reflection
section of the
Basic Parameters
rollout, click on the color
swatch and set HSV values of
0
,
0
, and
250
.
Note
When working to create realistic materials, I have developed a habit of
staying away from using full intensity values such as 255 due to the fact
that very few finishes in reality can be called 100 percent. Dialing the val-
ues in a material property back from full, even just a little, can oftentimes
help add to its potential realism.
2. In the
Refraction
controls, we need to perform exactly the same steps.
If we just hit the
Preview
button in the material editor at this point, we quickly see
that things are not really looking as we want. Rather than a reflective/refractive ma-
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