"Awesome Spine" Tutorial

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Old 10 October 2008   #1
"Awesome Spine" Tutorial

Here is the tutorial i've posted for the "Awesome Spine" setup. Let me know what you think?
Awesome Spine

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Old 10 October 2008   #2
Interesting.

Step 8 has some serious grammatical errors in it, and it took awhile to get what you were saying with regards to that.

I think overall it's a good tutorial, but you left out one important aspect of it; the "why".

There are a lot of steps and I think it might be very good to preface some of the longer parts with a reason why you are doing the following steps. For instance, I'm still not 100% sure why the locators are created... is their primary purpose to keep the spine from flipping, or are they meant to be grabbed by the user for more control as well?

Small things like that. I think it will be an excellent tutorial to point people to who have questions about rigging an IK spine.
 
Old 10 October 2008   #3
You make some very good points, i'll go about editing the tutorial. Thanks for pointing that out.

To answer your question about the locators, they are there for the poleVector constraint so you control the twisting of the spine by an individual bone basis. And this is good so you can twist 180degrees without flipping. That is the high level reason for the setup to get a stable twist out of the spine.
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Last edited by mberglund : 10 October 2008 at 02:13 PM.
 
Old 10 October 2008   #4
can it bend 90 degrees forward, back or sideways whilst twist 180 degrees? Looks like you essentially doing mid-point interpolation for the twist.
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Last edited by eek : 10 October 2008 at 01:51 PM.
 
Old 10 October 2008   #5
I did some tests on a skinned version and it does. here are some pics.



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Old 10 October 2008   #6
tasty! thanks for sharing
 
Old 10 October 2008   #7
thanks for posting that, it was pretty clear.
there is also this:

http://www.highend3d.com/maya/downl...ation/3708.html
 
Old 10 October 2008   #8
Originally Posted by mberglund: I did some tests on a skinned version and it does. here are some pics.





Cool, can the chest do this too?
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Old 10 October 2008   #9
oh, yeah. sorry should have posted pictures displaying both.

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Old 10 October 2008   #10
Originally Posted by mberglund: oh, yeah. sorry should have posted pictures displaying both.



Now thats a nice rig! - great work! Now I must assimilate it into max.
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Old 10 October 2008   #11
I often redo rigs from Maya into Max. I'll give it ago and post what I come up with
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Old 10 October 2008   #12
could you post the scene file so I can try it out before investing time in going through the tutorial? Thanks
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Old 10 October 2008   #13
very generous man...
i read your blog and would you pleeeaaasssseeee add a squash and stretch.
i have a question though:
would your "awesome spine" be applicable in arms?
again tnx man!
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Old 10 October 2008   #14
Sure, thing! I'll add the tutorial on how to make it squash and stretchy.

It is applicable with arms, I tested it out when I got the spine working, there is only a few changes that have to be made. I can make that a tutorial as well if you would like.

Also, i'll try to post the .ma file as soon as I can.
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Old 10 October 2008   #15
More test, sorry I just want to verify the rig of its 'awesomeness' (which it is btw ):

Successive Twists

test 1
With the chest/shoulder control rotated forward 90 degrees, and twisted 180. Do the same with the hip so the twist is back to 0. Then rotate the chest another successive +180.

Im testing if the chest and hips can twist in +180 steps continuously without having to rotate the main torso control. Do the same with negative twist -180.

cheers,
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