9
1696 Chapter 16: Material Editor, Materials, and Maps
• If you assign Flat Mirror to multiple faces, the
faces must lie in a plane.
• Non-coplanar faces in the same object c annot
havethesameFlatMirrormaterial.
In other words, if you want two different planes
of an object to have flat reflections, you must
use a Multi/Sub-Object material. Assign Flat
Mirror to two different sub-materials, and
assign different material IDs to the to different
planar faces.
•ThematerialIDusedbytheFlatMirror
sub-material must be unique to the coplanar
faces in the object.
If you assign Flat Mirror using Apply to Faces
w ith ID, faces without that ID display the
nonreflective components (diffuse color, and
so on) of the material with the F lat Mirror
reflection map.
Pr ocedur es
To a ssign a flat mirror to one face of an object:
1.
In the Material Editor, create a standard
mater ial.
2. Assign a Flat Mirror map as the m aterial’s
reflection map.
3. In the Flat Mir ror Parameters rollout > Render
group , turn on Apply To Faces With ID, and
choose the material ID number the mirrored
face will have.
4. Follow the next set of steps for assig n ing the
material to the object.
To assign the mirror to a flat surf ace:
1.
Select an object.
2. In the Modify command panel, apply Edit
Mesh to the object.
3. Make sure Sub-Object is selected, and choose
Face as the sub-object level.
4. Selectasinglefaceormultiplefacesthatlieina
single plane.
5. AssignthefacesthematerialIDyouchosefor
the Flat Mirror map.
6. Assign the material to the object.
To a ssign a f lat mirror using a Multi/S ub-Object
mat er i a l :
1.
In the Materi al Ed itor, create a
Multi/Sub-Object material.
2. Click one of the unused material buttons in the
M ulti/Sub-Object material’s parameters.
3. In the new Standard sub-material, open the
Maps rollout and click the map button for
Reflection.
4. In the Material/Map Browser, choose Flat
Mirror, and then click OK.
Flat Mirror controls are similar to those for
automatic reflection and refraction.
5. Apply Edit Mesh to t he object, and then in the
stack view area of the modifier stack display
(page 3–760), choose Face as the sub-object
level.
6. Selectasinglefaceormultiplefacesthatlieina
single plane.
7. Assign the faces the m aterial ID corresponding
to the Flat Mirror sub-material slot.
Using a Multi/Sub-Object material, you can
apply Flat Mirror to different faces of the object
that are not coplanar. However, faces that are
notcoplanarmustusedifferentsub-material
slots, otherwise the software do esn’t correctly
generate the flat mirror reflections.