Vertical pupil orientation

[Illusion-shadow]

What software are you using? Did you rig the character already? If you are using Max and and the character's eye ball have a look at controller on it, what you need to do is in the lookAt controller, select the head bone us the upnode and it should solve the problem.

[zenkatydid]

I'm using Maya, sorry. He's already rigged and I've started animating him - I only just noticed there was a problem now. I was hoping there was a small fix I could do rather than re-rigging the whole head/look controls to save my animation, but whatever's necessary of course I'll do.

I've tried constraining it to the head controller instead of the look controller (which is a curve out in front of his head) but this doesn't fix the problem, the angle is still fixed.

[ravikumar]

Hi..
I think so this problem is coming with the aim constraint of the eye ball joint (to which the eye ball is parented and used for the aim with the controller). Now the eye ball joint 'world up axis' is according to the scene. So delete the old aim constraint and create a new with the following options:
set the World up type: Object rotation up
World up vector: 0 1 0
World up object: type your character's head controller name.
The remaining options are you keep as per your settings.
Now we set the eye ball joint 'world up axis' is according to the head controller. Create the aim constraint and check.

[Diependaal]

if you move the head, but not the eyes lookat control. than the eyes wont move.

if that not it, and you did mvoe the lookat also, than you might have linked the eyes wrong.
make a helper node,, link that to the headbone, make the helpers be lookat.. link the eyes to the helpers.

[zenkatydid]

they way i have it rigged preferentially is with the head controlled by a head controller and the eyes controlled by a look controller, so that they move separately. i have also tried putting both the head and the eyes on the head controller, so that the eyes move with the head and not separately. the same problem occurs in both cases.

the problem is not that the eyes are not following the controls - they are - it's just the orientation of the pupil. if the x-axis is coming out of the centre of the eye, then it's the x-rotation that's not working, while the y- and z- rotations are fine. does that make sense?

i'm surprised no one has come up against this problem - has anyone ever rigged cat eyes like this, and could you tell me what you did?

thanks.

if you move the head, but not the eyes lookat control. than the eyes wont move.

if that not it, and you did mvoe the lookat also, than you might have linked the eyes wrong.
make a helper node,, link that to the headbone, make the helpers be lookat.. link the eyes to the helpers.

[d-brooks]

I've had this exact problem before!!
Now I'm assuming you've got some kind of aim constraint on the eyes....if you haven't, then ignore me.

You must specify an 'up vector' for the eyes when making an aim constraint. I've found the best way is to use an up vector object (which can be specified in the aim constraint options box) like a locator or something, placed directly above the eye.

Once you've specified what's up, parent the locator under the head control and you should find the eyes rotate with the head. You can hide the up vector after for tidiness.

*Ravikumar just saw your post, you got it too!*

Hope this helps!

[zenkatydid]

ravikumar and d-brooks, thanks you SOOO much! (sorry ravikumar, i didn't see your post before!) i used your locator up object idea, d-brooks and it worked wonderfully. i KNEW there would be a simple solution :D

http://i61.photobucket.com/albums/h48/zenkatydid/yay.png

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