Well I’ve been waiting for this issue to be fixed, In the release notes it states that this bug has been addressed.

I can’t believe this simple parenting issue remains unresolved. How could this be overlooked? I found it within about a half hour of use! as well as a few crashes to boot. I’ve even tried using constraints as a work around, this also fails.

Not Impressed. Back to to the older working version for me. Perhaps instead of pushing builds out the door every season for profits we could wait until it actually works?

Sorry for sounding a little harsh, I love the way MB works. But 2012 was unusable because of this and it looks as though it’s the same for 2013. I can’t see how anyone could use these last two versions in production.

Extremely disapointed.

Hi Jazen,

Do you have a video of how it worked before? That might be helpful for Autodesk.

Product Designer for Virtual Production
Autodesk

No, Although I could better describe what is happening and only takes a minute or two to test if you have a rig and a two handed prop.

I’ve a character holding a rifle, The gun is parent constrained to a joint in the right hand, Normally I’d simply use a aux effector for the left hand which would be parented or constrained to the gun itself. Quite simple. But this does not work in 2012 or 2013. As soon as you parent the effector to anything it breaks, the hand snaps off and away from the effector and will not move with the prop at all. Even Constraining will not work, it gives the same result.

It works in 2010 and 2011, however 2011 did not plot the effectors along with the rest of the rig as in 2010. Now they just don’t even work at all.

It seems like besides the fluff that has been added, motionbuilder is devolving in functionality.

I’ve used MB in a games studio for over two years, but we could not use 2012 at all. These limitations (bugs) make it simply unusable. It appears as though it’s still unusable.

Can anyone confirm the problem? Maybe I’m bitching because of some other unknowns? I find it hard to fathom that autodesk would let this out the door like this?

Thanks for your reply.

Hey Jazen,

That’s a shame that the Aux effectors aren’t working properly for you as they are super-handy.  I’ve been working in 2012 and 2013 and I don’t see the problems that you describe.  I recreated the same situation that you laid out in your post and everything worked as I expected.

I guess the good news is that this feature SHOULD work for you.  The bad news is that I dont have a clue as to what it causing it to fail on your machine.  good luck!

-E

Hi guys I’ve found out something.

If you have HIK 4.5 solver instead of MB character solver,hand snaps away.
HIK solver is relatively new,hence you started getting the problem since 2012,I guess.
Just choose MB charcter solver,and you should be fine.

Guess it’s a loop issue since you have the gun in the bone hierarchy which is constrained by the
rig,and then you are trying to constrain the rig back to the bone hierarchy.
The simple way to do is to create a controller for the gun and constrain the aux eff to this controller.

Jazen 26 April 2012 12:35 AM

It works in 2010 and 2011, however 2011 did not plot the effectors along with the rest of the rig as in 2010. Now they just don’t even work at all.

I hear ya, that’s exactly the reason we didn’t upgrade to 2011, plotting the effectors to deal with hands holding props etc. it’s a MEAT AND POTATOS workflow for Mobu animators everywhere.
I couldn’t believe it when they broke it, I can’t believe it hasn’t been fixed yet.
Here’s what I posted back in 2010:
http://www.the-area.com/forum/au...t-not-plotting-correctly/

Same problem here. Aux effectors fail horribly when parented directly back to the skin-skeleton or indirect through constraints/inbetween-props.
Used to work well in MoBu 2010. Very sad, this..

Hi,

Sorry to hear about this issue, I’m the product designer for MotionBuilder and have tested the various problems out. If you have a few minutes, can you review this video and make sure the behaviour is correct? 

I tested:
aux effector parenting to a scene object (character extension)
aux effector parenting to a skeletal node in the character
character extension plotting

http://youtu.be/h-62lBAFpk4

Please enable the video’s closed captioning.

Thanks!

Product Designer for Virtual Production
Autodesk

	Video

I’m also having the exact same problem. The youtube video that was posted didn’t address the issue people are talking about at all. The problem I’m having is attaching two hands to a prop. I’ve literally tried everything, aux effectors won’t work, constraints won’t work, nothing works. Something that I can setup in Maya in 6 seconds, and something you would use on a regular basis in animation shouldn’t be this complicated.

I wanted to try the suggestion about changing the solver from HIK to MB, but I can’t find where you do this. In my solver list, I only have an HIK solver. Any suggestions on how to switch to another one?

Thanks

Joel,

I think you’re noticing issues when two limbs are constrained to a single prop in HIK because of a lack of double solving. The MB character solver has the ability to ‘resolve’ that issue, while HIK doesn’t. I don’t recall it being an issue specific to Aux Effectors, but is certainly related in terms of workflow.

As a general note to all on this thread, we have a beta program starting in a few weeks, it would be great if you could join and provide more feedback for the development team regarding these issues. If you’re interested, please PM me.

Thanks,

Joel

Product Designer for Virtual Production
Autodesk

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