8

UVW Mapping in Architectural Desktop Objects 453
that is stil l present in Architectural Desktop.
Materials developed in this way can b e viewed
in Architectural Desktop and rendered with the
legacy AutoCAD renderer. Any assignments
of these materials to geometry in Architectural
Desktop that is made through the RMAT
commandoritsMaterialdialoginArchitectural
Desktop wil l b e ignored in 3ds Max.
In theory, RMAT materials could be assig ned to
Architectural Desktop objects (not AutoCAD
objects) by incorporating them into Architectural
Desktop material definitions, and using these
material definitions in edits to Architectural
Desktop styles or object overrides. Materials
created and assigned in this way would appear
in 3ds Max assigned to the linked Architectural
Desktop objects. However, this practice is not
recommended because the native 3ds Max
Architectural materials have more complete
informationonthesurfacecharacteristicsof
objects, and are easier to create and share. In other
words, you work faster, share easier, and get better
results using native 3ds Max rendering materials
in both Architectura l Desktop and 3ds Max.
See also
Material Editor, Materials, and Mapping (page
2–1239)
UV W Ma pping in Architectura l
Desk top Objects
An impor t ant consideration in how many
materialsrenderishowtheyare“mapped”tothe
surfaces of the objects they are assig ned to. This is
especially important for materials t hat use
bitmaps
(page 3–1011)
to define the diffuse color of a
material, or the bump and cutout special effects.
As an example, you m ay have scanned a picture
of wood grain for use in a material, but when
the material is applied to an object, how large
should the image of the wood grain be? Which
way do you want the grain to run, and how do you
want the grain to wrap around the corners of a
three-dimensional object?
How two-dimensional maps are applied to
three-dimensional surfaces is represented by
mapping coordinates (page 3–1061) ,whichare
stored as
UVW coordinates (page 3–1122) .In
caseswheremappingcoordinatesarelikelytobe
important to the rendered appearance of an object,
Architectural Desktop assigns UVW coordinates
to object components. 3ds Max translates these
coordinates and stores them i n the object mesh
that is displayed and rendered in the 3ds Max
scene. You can adjust these coordinates in 3ds Max
using the
UVW Xform mo difier (page 1–916) ,or
you can redefine them all at once using the
UVW
Map mo difier (p age 1–905)
.
Impor tant: Make sure that Rescale is turned on in the
Attach Panel of the File Link Manager dialog. Otherwise,
if the units do not match, the UVW coordinates will be
incorrectly scaled when linked to 3ds Max.
Drawings Ex por ted fr om
Revit in 3ds Max
Dr awings Ex por ted fr om R evi t
TheExportfunctioninAutodeskRevitletsyou
export models to DWG or DXF file formats. In
Revit 6.1 and 7.0, the exported drawing entities
contain additional information, “
Revit data, ”such
as their origin ating Category, Family, Type, and
Material.
The
File Link Manager (page 3–431) and
DWG/DXF Impor t func tionality looks for and
processes this additional information. When