Graphics Programs Reference
In-Depth Information
Note:
Flat Mirror only works on perfectly flat surfaces. Objects
that have a curve to them should have a ray trace
reflection material applied to them. Otherwise the
reflections will be incorrect. However, ray-traced
reflections take quite a bit longer to calculate due to their
complexity.
After applying the Flat Mirror material to your Reflection
channel, you will see a list of options.
Figure 8-20: Flat Mirror options
In order to make the Flat Mirror work, you have to tell your
material which face you want to be reflective. If you don't do
this, you won't see any reflection. Here, we don't want the
bottom and sides of our floor geometry to reflect, only the top
polygon. To designate which polygon you want to reflect,
check the Apply to Faces with ID check box.
By default, the ID is 1. That means we need to make sure
our top polygon is set to 1. To find out what our top polygon is,
go into the sub-object mode of the floor and select the top
polygon. Under Polygon Properties, you'll see a material ID
number.
