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430 Chapter 20: Managing Scenes and Projects
Tip:
Unless you chose the One-to-One s orting
option, you won’t immediately see the Extrude
modifier when selecting an object. To see it, look
through the modifier st ack for the VIZBlock (page
3–1031) sub-objects. In a nested VIZBlock, the
Extrude modifiers appear at the bottom of the
stack. You can then edit the Ext rude modifier
parameters.
Texture Mapping—The texture mapping setting
can reduce the loading t ime of m odels that have
many objects with stored UVW Coordinates for
texture mapped materials.
Note: This sett ing applies only to geometry that
is stored as a mesh in the scene. Spline shapes
marked as renderable have separate controls for
UVW coordinate generation; these are found on
the Spline Rendering panel (page 3–435).
•
Gener ate Coordi nates For Al l
Objects—
Automatically generates UVW
coordinates for all objects when the drawing
is linked.
This option tells the File Link Manager to
create UVW coordinates, but loading time
is increased while the coordinate generation
occurs.
•
Gener ate Coordina tes On D emand—Does not
generate texture coordinates for linked mesh
objects.
Actively lin ked objects generate UVW
coordinates on demand, so if you assign a
material to an object and the material requires
texture coordinates, the texture coordinates are
silently assigned to that object. If the material
or texture map is set to display in viewport, the
coordinates are assigned as soon as the material
is applied; if not, the coordinates are assigned
when the scene is rendered.
This option gives you faster loading speed, but
no UVW coordinate generation.
Note: Objects in drawings created in AutoCAD
Architecture pass texture coordinates explicitly
to 3ds Max when you attach the dr awing. If
you specify on-demand coordinate generation,
they might not match the coordinates that were
specified in the or iginal drawing. The m ap
scalingisthesame,butthetextureoffsetsmay
be altered.
Curve steps—For objects such as splines, the
number of knot points determines the spline’s
shapeandcurvature. TheCurvestepsvalue
defines the number of segments b e tween knot
points. A low value gives you a more linear
interpolation between the knot points; a higher
number gives you a more accurate curve.
Maximum sur face deviation for 3D solids—Specifies
themaximumallowabledistancefromthe3dsMax
surface mesh to the parametric AutoCAD solid
surface. Small numbers produce more accurate
surfaces w ith a greater number of faces. Large
numbers produce less accurate surfaces with fewer
faces.
Includ e group
This group allows you to toggle the inclusion of
specific parts of a DWG f ile during the file link
process.
External references—Imports xrefs attached to the
DWG file.
Lights—ImportslightsfromtheDWGfile.
Hatches—Imports hatches from the DWG file.
Wa rn in g : This stores each line or dot in the hatch
pattern as a separate spline that defines the hatch; this
can create a very large number of objects in your scene.
Views and Camera—
Imports named views from the
DWG file, and converts them to 3ds Max camer as.
Point s—ImportspointsfromtheDWGfile.
Note: The imported point objects are represented
in 3ds Max as Point Helper (page 2–23) objects.