INFO: Tip for Rotating a Model Locally on All Three Axes
  
PSS ID Number: Q173625
Article last modified on 09-12-1997
 
IRIX:3.7; WINDOWS NT:3.7
 
IRIX NT WINDOWS
 

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The information in this article applies to:
 
 - Softimage 3D for IRIX, version 3.7
 - Softimage 3D for Windows NT, version 3.7
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SUMMARY
=======
 
Traditionally, to rotate your model locally on all three axes you would
have to create a hierarchy made up of three nulls. Each null would then
have to represent the three different axes (Null 1 parent of Null 2, and so
on, with the target model as the child at the bottom of the hierarchy).
 
An alternate method, that is quicker and more economical, is to position
and orientation constrain (Constraint > Position and Constraint >
Orientation) the target model to a 1 joint IK chain`s root Null.
 
Then, rotate the IK chain`s joint on any axis (while in ADD mode). The
target model will now behave as if its rotations are local.
 
REFERENCES
==========
 
SOFTIMAGE 3D Reference Guide: A to H, Appendices page 192.
 
If you have any questions concerning the information contained in this
article, contact support@softimage.com by e-mail.
 
Additional query words: si si3d si3dconst
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Version           : IRIX:3.7; WINDOWS NT:3.7
Platform          : IRIX NT WINDOWS
Issue type        : kbinfo
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Copyright Microsoft Corporation 1997.