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Duik IK – scaling and flipping puppets
I’ve been using Duik (An IK system made for after effects) (link: https://duduf.net/?page_id=151)
It’s fantastic, I have rigged up my character using puppet pins, bones, controls and IK. Everything is working great.
However, I want to flip my character so it is facing the other way. It has a master control that everything is linked to, so I changed the Master control’s scale to [-100,100].
My character is successfully flipped and looking fine – until i try and move the controls. Whenever I move them, my character distorts in weird ways.
I assume it is because there is complicated maths in the IK expressions that don’t work when flipped, was just wondering if it was even possible to fix my controls/flip my character, or if i will have to rebuild my character all over again facing the opposite direction.
My current workaround is flipping the characters precomp – but it doesn’t make it intuitive to animate in the main comp. A better solution would be much appreciated.
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12 Replies
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Why not just rotate the master control 180 degrees?
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Sincerely,
George
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Ah I was so excited when I read this but no dice. It reacts the same way as if I scale it.
You can see that the arms automatically go wonky and jump away from their controls in the flipped version. When you start to move the controls, it gets even worse.
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Can you just precompose the entire rig and do the rotation on the precomp?
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Sincerely,
George
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yeah, that’s what I’m currently doing, but it makes character interactions not as intuitive to animate.
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Okay, so I’ve not tried this, but I’m pretty sure it will work. Go ahead and duplicate the rig anyway though so you don’t mess anything up fiddling with it.
Try making the controllers for the hands have the exact same anchor point as the master null object. This way, when you rotate the master null, the others will rotate around the same anchor point.
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Sincerely,
George
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I thought this would work but it’s still the same 🙁
I made the control anchor points and positions match, but the arm still freaks out when the master is rotated/scaled to flip.
I’m guessing it’s always gonna be something in the specific IK expression that won’t let it be flipped. Sigh, I guess I’m gonna have to flip the graphics in photoshop and pin/rig it all over again. -
Hey Rosa,
The best way is to create a second puppet and parent the controllers together. Then create an effects controller on/off switch that turns the visibility of the two different puppets on and off…
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Hmm, sounds like that would work…but then if I’m creating a second puppet, I’m probably better off just using the new one instead. If I need to flip between the 2 in the same scene, I think I’ll use this method, thanks.
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hey Rosa,
did you ever manage to solve this? I’m curretnly animating a brilliantly designed (by Chris Mould) spider and I’ve rigged and automated one leg, so when the spider moves, the leg takes steps. Now I’d like to duplicate the leg 7 times, 4 of which need flipping.
I’m also stumbling on the duplication. I think I need to read up how to use the rename function
thanks
Matt
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I didn’t end up with a proper solution, sorry. The rig I was using (DUIK) had specific maths in the expressions which just freaked out anytime i tried to flip it.
However, I was trying to flip my whole rig and use it (which didn’t work). I assume if you want to make opposing legs on the spider, you can just make 2 legs (each one bending opposite ways) and duplicate them 3 times.
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