Scorpion Rig : Issue about Spline IK

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Old 02 February 2013   #1
Scorpion Rig : Issue about Spline IK

Hi guys, i'm a beginner rigger from Italy trying to improve my skills and that's why i just decided to rig the "Mech Scorpion" by Nicholas Silveira original post .
I want that if i move the head of the scorpion , automatically the tubes bend with it.
Just tryied Spline Ik that i thought it was the best solution but i can't reach the result i want.
Anyone have some suggestions about ?

 
Old 02 February 2013   #2
what exactly are you looking for and how did you placed the joints? can't see the joints on your image.
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Old 02 February 2013   #3
oooh Thank you so much for your time,

these are the bones



and i want that if i move the head , the tubes bend automatically.

something like this but more dynamic.


 
Old 02 February 2013   #4
the moving example uses the "normal" ik handle.
The thing with the spline ik is that you cannot control the joints or the ik hanle, everything is controlled by the spline.
Test this:
make a joint chain. 4 or 5 joints are enough. make a spline ik. select some cv's of the spline and move them around. The joints will move with it.
So, the best solution is to make deformers on the spline. Dynamic simulation will work as well.
for now, select a cv on a spline, in the animation menu set>create deformers>cluster. You then parent this cluster to the control objects.
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Old 02 February 2013   #5
thank again , this is awesome.
the last issue now is that the chain move only following the spline, how can i apply some deformers to spline ?
 
Old 02 February 2013   #6
cluster deformers. I described in my previous post. Select a cv, apply a cluster deformer. The cluster deformer has a trasnform, you can manipulate it like any other object.
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Old 02 February 2013   #7
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