Graphics Programs Reference
In-Depth Information
Figure 18.16
Lamp
Plane
Camera
Elongated cube
Figure 18.17
Make sure the cube is selected in the 3D window
and then in the node editor window - material nodes
mode, tick “Use Nodes” and set up the arrangement
seen in Figure 18.18. Note that the “Separate R” node
in the figure is actually “Separate RGB” and the “Ex-
tend” node is “Extended Material.” Note also all the
unconnected sockets on the extended material node.
The rule here is that an unconnected input socket will
relay the value in its adjacent panel to the output. If an
input node is connected then that node overrides the
value. For example, “Refl 0.800” is the value used since
there is no input connected to the socket.
It's worth remembering that in any scene, the lamp
or number of lamps, the type of lamp, and the energy
settings and color of the lamp light can have a dramatic
effect on the rendered image. Something else to note in
Side view of the scene
 
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