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Duik problems? I have the solutions

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Ben Peterson
Duik problems? I have the solutions
on Aug 26, 2014 at 6:11:34 am
Last Edited By Ben Peterson on Aug 26, 2014 at 6:12:25 am

Duik support pages are all in French so if you dont speak it you are pretty much left to your own devices. There are a couple of 'how to' videos around that are helpful but nothing for when you encounter bugs etc.

So I have been struggling with DUIK over the last month but I recently stumbled upon the solution to my problems so I thought I would create this post so that others who are having the same issues might see it and not have to tear out their hair trying to figure out what is wrong like I did.

The problems I encountered are as follows -
1. Wont create controllers:
If for some reason you need to undo the rig and start over, you have to delete all the expressions on the layers, delete the zero objects that DUIK creates and then you also have to delete the controllers because for some reason once the expressions and zero objects are gone DUIK will not make an new IK chain from the existing controllers.
However, once you delete the controllers, for some reason DUIK will not create new ones. You can keep clicking that button but nothing will happen.

The solution
You have to change the name of the comp and then it will create new ones. I know this sounds simple but trust me, nobody online for over a month could tell me this and I only really stumbled upon it by accident.

2. Controllers in wrong place:
So you got the controllers happening again but now its making them in the wrong place.

The solution
If you have moved the root layer of your puppet from its original place DUIK will continue to create the controller in the old place so make sure you start with the root layer at position zero and then it should be ok.


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Rob Logan
Re: Duik problems? I have the solutions
on Sep 17, 2014 at 6:16:29 pm

I too have run into occasional bugs with this script. I love DUIK but even with Auto-rig it can be a handful to use. I just got finished rigging a fairly complicated model only to find that none of the controller parameters can be changed and every limb is stuck in auto-stretch mode.

I'm thinking it might be a bug in the boning process. Animator Daniel Geis has talked about how he bones only one pin at a time in an effort to avoid DUIK problems. I was more ambitious and tried to bone multiple puppet pins at once... which may have caused the problem.

Do you know of a quick method to easily de-rig everything and start over? Even deleting the bones and controllers still leaves a bunch of expressions connected to each puppet pin.


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Tom Hawcroft
Re: Duik problems? I have the solutions
on Sep 18, 2014 at 12:45:57 pm

Hi guys,

I had a weird issue when rigging. It's on a segmented puppet, and whether I IK the limbs separately or do the whole thing via auto-rig the leg pieces distort whenever I move them with the controller. Visibly squashed/skewed around 90 dgs, and back to normal at the original position. I made sure NOT to enable stretch...

So there's Thigh > Calf > Ankle < Toe

And the controller on the ankle. Any idea what might be happening here?

Cheers!


Tom


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Rob Logan
Re: Duik problems? I have the solutions
on Sep 18, 2014 at 1:58:32 pm

Tom,

You probably need to use the Puppet Starch tool. Starch is essential in avoiding the 'rubber hose' look.

You may also need to change the IK Orientation setting for each controller connected to an arm or leg. It determines which way the knee or elbow bends.

Lastly, do you have the toe pin parented correctly to the ankle?


Rob


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Tom Hawcroft
Re: Duik problems? I have the solutions
on Sep 18, 2014 at 2:27:51 pm

Hi Rob,

I've actually just realised that the puppet tool might not be to blame here, but rather the aspect ratio. Never happened before so I don't know why, but my PSD layers are being distorted when I move them... either by the comp settings, or their own pixel settings. One step forward, two steps back!


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David Hallows
Re: Duik problems? I have the solutions
on Dec 15, 2014 at 10:41:48 pm

Hi everyone
I've been playing with Duik and the Auto rig on simple characters, through wanting to teach some simple character stuff at college. Unfortunately, I keep on getting the error message - After Effects warning:undo group mismatch, will attempt to fix. After that, all the controllers have lost their FX and it's all gone terrible. Any help would be brilliant

Thanks
David


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CHris Koelsch
Re: Duik problems? I have the solutions
on Jan 14, 2015 at 10:14:47 pm

David,

Are you on CC 2014? This has JUST started happening to me since the update. It appears to be happening a lot with 3rd party programs right now but I have yet to find a solution. Basically my only work around right now is to not undo any actions with the rig.

Chris

Chris Koelsch
http://www.tandtfy.blogspot.com


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Agnes Swart
Re: Duik problems? I have the solutions
on Nov 24, 2015 at 5:53:23 pm

I would love if you could help me out with my problem. I am trying to set up a horse. with the duik full character rig. I am using the ungulate as suggested. my previous try, with a man worked fine. though I used images.

the horse has been build with shape layers.
after setting up the layers, I get an error; something about my rotations being off. but all rotations on the layers are 0. the layer causing the fault is the first given an IK, so I expect even if I get the first sorted the next and the next will cause issues. any ideas? (willing to provide the afx file if needed)


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Cutter Johnston
Re: Duik problems? I have the solutions
on Dec 23, 2016 at 4:48:27 pm

TIME STRETCH DUIK LAYERS:

I have beautifully rigged characters using DuIK. The comps are too short [336 frames at 24/sec]. When I time stretch the layers the rig falls apart. Current work around is create short clips and edit them together. I do not want to re-rig the 7 characters.

If anyone has a better solution PLEASE post.

Thanks!

Cutter


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Rob Logan
Re: Duik problems? I have the solutions
on Dec 23, 2016 at 8:10:59 pm

What do mean when you say the "the rig falls apart" when you time stretch?


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Cutter Johnston
Re: Duik problems? I have the solutions
on Dec 24, 2016 at 12:57:44 am

Rob Logan-Thanks for the reply. What happened was that Hand Controllers at the R Arm and L Arm no longer worked properly. The arms separated at the shoulders and the controllers did not move the arms. HOWEVER, prior to this reply I checked the "corrupted" file and they are working perfectly. I made no changes to the file after my post.

Is it possible that the script takes a while to "catch up"? I am relatively new to DuIK. Historically I have used Dan Ebberts script for rigging.


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Rob Logan
Re: Duik problems? I have the solutions
on Dec 24, 2016 at 1:46:00 am
Last Edited By Rob Logan on Dec 24, 2016 at 1:47:24 am

I haven't seen the broken rig problem you're describing but in my experience time-remapping puppet pin animations is a bad idea--there are so many keyframes and expressions that are time-related that it can result in jerky looking animation and other weirdness. I'm not an expert in DUIK but that's been my experience.

I know it's tempting when you see your animation is moving too slow or too fast to just precomp all the layers and then start time remapping until you get the speed you need but it often causes more problems than it solves, especially later on if you have to do revisions. It's better to get all your keyframes in the original comp to time correctly. The best way to do it is to highlight all the keyframes you want to move stretch or shrink. Then grab the first or last keyframe, hold the alt key and drag. This will stretch them all (or shrink them), maintaining the same proportional distance between each keyframe. Just do this until you get the right speed for your animation.

If you must do time remapping with a DUIK comp, it's best to export a lossless AVI of your comp and then import the video back into After Effects and do the time remapping on the video file. Although not an ideal solution, if you're pressed for time, it may help you get the job done quickly and avoid all the quirky weirdness that happens when retiming a puppet pin animation.


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Cutter Johnston
Re: Duik problems? I have the solutions
on Dec 24, 2016 at 4:50:52 pm

Rob Logan-THANK YOU!!!! You may have not experienced this issue but in answering this post you most likely save me countless hours in refinement. The puppet pin and workflow information is invaluable.
Much appreciated!
Cutter


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Cutter Johnston
Re: Duik problems? I have the solutions
on Jan 9, 2017 at 3:04:16 am

EXTENDING / INCREASING DuIK COMPS [LAYERS]

Is there a method of increasing the length of a comp rigged with DuIK? The comps were set up with 336 frames [24/sec]. I need to increase the length to 1210 frames [874 additional].

The rig generates serious errors/falls apart when the comp is increased.

Plan B is to edit 3 clips together. Problem is there are 6 characters.


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