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430 Chapter 20: Managing Scenes and Projects
copies are automatically converted to editable
mesh or editable spline objects. If your selection
con tains several objects which instance another
object,theresultingcopiesalsoinstancethesame
object.
Compound Obj ects Contain ing A ctively
Link ed Objects
If you use an actively lin ked object as part of a
compound object, y ou should always choose
Copy when you specify how the linked object is
transferred to the compound object. Choosing
ReferenceorInstancecancauseinstabilityinthe
software.
Attaching Actively Link ed Objects to
an Edita ble M esh, Poly, Patch, or Spline
Object
Actively linked objects should not be attached to
editable objects, as this introduces instability to
the software. Instead, make a copy of the actively
linked object, and attach the clone to the editable
object.
Creat ing Hier a rchies wit h Activel y
Link ed Objects
Creating parent-child links between actively
linked objects AND 3ds Max objects can cause
unpredictable results. For this reason, 3ds Max
does not allow you to link an actively linked object
to a 3ds Max object. Ho wever, you
can link a
3ds Max object to an actively linked object.
The existing hierarchies of linked objects cannot
be broken in 3ds Max. This would compromise
the structure of Blocks and Styles. Any changes
must be made in the original D WG file.
Similarly, actively linked objects cannot be
included in the creation of
Group (page 1–102) or
Assembly (page 1–104) objects in 3ds Max.
Contr oller Assi gnments
Actively lin ked objects shou ld not be included
inanyIKanimationchains,astheywillcause
unpredictable results. Likew ise, animation
controllersshouldnotbeappliedtoactivelylinked
objects.
Assignments to avoid include:
•
HI IK Solver (page 2–427)
• IK Limb Solver (page 2–454)
• Spline IK Solver (p age 2–455)
• HD IK Solver (page 2–442)
• Inherit Link Info (page 2–482)
• Link Inheritance Utility (page 2–416)
• Assign Controller (page 2–523)
Interpreting Layer Data from
AutoCAD, A rchitectura l Desk top,
or R ev it
3ds Max has its own L ayer system that looks and
operates like a simplified version of the system you
are familiar with from AutoCAD or Architectural
Desktop. As in A utoCAD or Architectural
Desktop, you can hide and unhide layers, freeze
and unfreeze them, and change the display color
for al l objects on the layer.
Note: Categories in your Revit project are similar
to Layers in AutoCAD. When you export your
project to a DWG, categories are mapped to
AutoCAD Layers via the
Export Layers table. For
more information regarding Export Layers, refer
to your
Autodesk Revit Help file.
Layer operations are accessed through the tools on
the L ayers toolbar, and a lso on an object-by-object
basis using the
quad menu (page 3–741) .
Unlin ked objects, such as 3ds Max objects or
drawing geometr y that has been bound into the
scene u sing the Bind command, may be assig ned