Comments on Animation Tips & Tricks: Do You Have Any Special Techniques Using Inverse K...

I translated this article to spanish and put some ...

2010-11-12T14:11:28.648-08:00

I translated this article to spanish and put some visual examples, you can see it in my blog:

http://jerzy3d.blogspot.com/2010/09/st1behaviorurlieooui-style-definitions.html

hope it will be helpful!
cheers,
j.

Yeah, when I was working at Tippett last year I us...

2010-05-17T22:52:35.438-07:00

Yeah, when I was working at Tippett last year I used this method of switching back and forth between IK and FK several times.

I find IK to be especially good when blocking in the arms where the wrists are close to the body (as they are when holing something close to the chest) and arms are bent. These poses are really hard to get with FK and you are constantly fighting the FK rig, counter animating rotations to get poses. With IK one simply moves the wrist and pole vector (or inverse twist) and you're done. Sometimes I would block in IK and then switch to FK so that I could make body adjustments and not have to tweak the IK poses.

At Tippett, the way I would do it was by using the IK/FK switching script we had there. I would block in IK the main poses, then step pose by pose matching the FK poses with the scrip. Then I would switch to IK off and presto! Most times the FK would give me the arcs for free so polish was easier as well.

nice article, I always use FK, unless I have to pi...

2010-05-13T12:07:20.194-07:00

nice article, I always use FK, unless I have to pick something up then I switch, but I`m yet to practice more with Ik and see how it goes. Something comes to mind, how can one achieve overlaping motion using IK arms? Like when you want to break joints a little?

Good article, thanks!

2010-05-02T05:17:29.034-07:00

Good article, thanks!

Currently I'm working in MotionBuilder, the IK...

2010-04-27T13:20:08.316-07:00

Currently I'm working in MotionBuilder, the IK/FK rig in there is nice and easy to use. My workflow like such: I get all my animation to the point where you are more or less happy with it on FK. I'm Motionbuilder, the IK and FK rigs are always following each other. So at this point, wth IK still active, I bake all the animation on the IK rig, which basically transfers the motion from the FK to IK. I can now turn the FK off and IK on and I am left with identical motion. In this way you can flip back and forth between FK and IK, retaining all of your animation. As long as you are comfortable dealing with a lot of keys, I find the method quite useful. Unfortunately I have yet to find a similar rig on Maya.

John, how exactly are you fixing odd motions and w...

2010-04-26T22:15:45.345-07:00

John, how exactly are you fixing odd motions and wobbles with IK if you've switched off the FK? This seems like a great way to work, I don't understand how it's possible with binary switches...

2010-04-26T22:15:09.693-07:00

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I find that using a combination of both can work w...

2010-04-26T20:46:36.339-07:00

I find that using a combination of both can work well. I like to get as far as I can using FK, then switch to IK to fix up any odd motions or wobbles. Sometimes I'll end up switching between IK and FK a bunch of times per scene, depending on the complexity of the motion. In the end, I guess it doesn't really matter which technique you use, as long as you get natural looking results.