Graphics Programs Reference
In-Depth Information
Figure 7.57
Setting specular levels
Figure 7.58
The whole wheel becomes bumpy!
4. Open the Attribute Editor for the tireShader, and click the Map icon ( ) next to the
Bump Mapping attribute. In the Create Render Node window, click to create a Frac-
tal texture map. Notice that the entire wheelShader icon becomes bumpy. Render
a frame, and you'll see that the entire wheel is bumpy—not just the tire. (See Fig-
ure 7.58.) Argh!
5. You have to use the wheelPositionRamp to prevent the bump from showing on the
rim. Select the wheelShader, and click the Input and Output Connections icon (
)
in the Hypershade to graph its network (Figure 7.59).
Figure 7.59
Graph the wheel-
Shader network.
