|02 February 2006|
New York Film Academy
New York, USA
3dsmax - Spine Rigging (Wiring Rotations).. HELPPP PLEASE ME
four spine bones and a control object for the spine is what i have in my scene.
the control object is linked with the 1st(bottom) spine bone.
my main problem is setting up the wire rotations for the spine. this is how i do it:
1. i select the control object, right click, and choose Wire Parameters.
2. from the pop-up menu, i choose transform > rotation > X rotation
3. then click on 2nd (2nd to lowest) spine bone and
choose the same thing.. transform > rotation > X rotation
4. in the Parameter Wiring dialog i select the entire rotation listing, (X, Y, Z)
5. then click on the ---> right arrow and click connect.
the bones turn to a different direction but the way i fix that is on the Hierarchy panel,
i click Affect Pivot Only (control object is selected), and rotate it around to put the spine bones into the position it should face. these next steps is where i have my problem.
1. with control object selected, i hold ALT and press Freeze rotation, and freeze the selection of the 2nd spine bone (2nd to lowest) the same way.
2. select control object, right click, and choose transform > rotation > keyframe XYZ > X rotation
and click on the 2nd spine bone and select the same parameters
from the pop-up menu. (transform > rotation > keyframe XYZ > X rotation)
3. in the Parameter Wiring dialog, highlight the Keyframe XYZ:Euler XYZ listing on each side,
click on the ---> right arrow, and click connect.
the rotations should be set up and the 2nd spine bone should rotate twice as fast as the 1st one (bottom spine bone) to simulate it like a real spine. what happens is when i rotate the control object in the X axis to make the spine bend back and forward, the lowest pine bone bends normally but the rest of the spine bones from spine bone 2 make 360°.
any help would be greatly appreciated and sorry for such a long "problem"