2008

IGES (Initial Graphics Exchange Specification)
The Initial Graphics Exchange Specification (IGES) is an ANSI standard that
defines a neutral form for the exchange of information among dissimilar
computer-aided design (CAD), computer-aided manufacturing (CAM) systems,
and computer visualization systems.
3ds Max implements the IGES standard for translating files to the software
from IGES file formats used by the mechanical engineering and entertainment
industries. Using the IGES import feature, you can read in native
NURBS on
page 7864 data between 3ds Max and other programs such as Autodesk
Mechanical Desktop
®
(release 3.0 or later), Maya
®
, Pro/ENGINEER
®
,
SOFTIMAGE
®
, CATIA
®
, and others. For complete details on the IGES standard,
see The Initial Graphics Exchange Specification (IGES) Version 5.3.
IK Blend
In biped
freeform animation on page 7792 , the IK Blend parameter determines
how
forward kinematics on page 7791 and inverse kinematics on page 7820 are
blended to interpolate an intermediate position. Using an arm to move a hand
is an example of forward kinematics. Using the hand to move the arm is an
example of inverse kinematics.
This parameter is located in the IK section of the
Key Info rollout on page
4288 .
IK Goal
In
history-independent inverse kinematics (HI IK) on page 3316 and the IK
Limb Solver
on page 3368 , the IK goal is the object associated with the end joint
of a kinematic chain. By default, its name is IK Chain01.
The kinematic chain is a single branch of a hierarchy used for animation with
inverse kinematics (IK) on page 7820 . The chain starts with the end joint and
travels up through ancestors until it reaches the start joint. When you move
the IK goal, the IK solver then uses IK calculations to move and rotate all other
objects in the kinematic chain to react to the object you moved.
NOTE You can move the IK goal away from the end joint, which causes the IK
chain to straighten out. When you move the goal back toward the end joint, joints
in the IK chain will bend again.
7812 | Glossary