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How to keep bones attached to artwork?
Posted: Thu Mar 09, 2023 9:26 pm
by Ty505
I'm working on a headturn and for some reason the eyelid and eye bones are not following? See
https://imgur.com/a/Iie5Ymw
Re: How to keep bones attached to artwork?
Posted: Thu Mar 09, 2023 11:08 pm
by Greenlaw
Without seeing the actual project file my guess is that the position of the eyes artwork are being animated by the head turn Smart Bone Action (SBA) separately from the eye bones, thus causing them to drift from the bones. If so, you need to remove the artwork keyframes in the action. It's an order of operations thing...bones move the art, not the other way around.
If you want, you can animate the eye bones in the action to move them with the head turn. This will still allow you to animate the eye positions on top of the SBA's offset.
IMO, you might want to create a Parent bone for both eyes and animate that for the head turn SBA instead, and then Shy that bone so it doesn't get animated by accident. This way the eyes bones will be completely free for independent animation but still move together with the head turn.
Hope this helps.
Re: How to keep bones attached to artwork?
Posted: Thu Mar 09, 2023 11:09 pm
by Daxel
That is normal. The artwork can't move the bones, only the bones can move the artwork. So to make the head turn you usually need to think about this:
The eyes need two kinds of animation: they need to change their position (to follow the position of the head) and they need to change their perspective (the shape of the eye changes).
To animate the position, change the position of the eye bones, and to animate the perspective (the shape) change the artwork moving the points.
Re: How to keep bones attached to artwork?
Posted: Sun Mar 12, 2023 5:54 pm
by Ty505
Greenlaw wrote: ↑Thu Mar 09, 2023 11:08 pm
Without seeing the actual project file my guess is that the position of the eyes artwork are being animated by the head turn Smart Bone Action (SBA) separately from the eye bones, thus causing them to drift from the bones. If so, you need to remove the artwork keyframes in the action. It's an order of operations thing...bones move the art, not the other way around.
If you want, you can animate the eye
bones in the action to move them with the head turn. This will still allow you to animate the eye positions on top of the SBA's offset.
IMO, you might want to create a Parent bone for both eyes and animate that for the head turn SBA instead, and then Shy that bone so it doesn't get animated by accident. This way the eyes bones will be completely free for independent animation but still move together with the head turn.
Hope this helps.
That was it! Everything works perfect now - I accidentally animated the vectors as opposed to the bones for the headturn, now I have them animated by the bones. Thanks for the help
