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How to Create a face bone rig?

Posted By paulg625 7 Years Ago
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paulg625
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I am looking for more information on face rigging a character?   How to attach the bones and where also the face painting.



vidi
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The Gamebone Withepaper is very helpful
https://forum.reallusion.com/159769/Upcoming-G5-Game-Bone-Character-Promotion


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liebe Grüße vidi




paulg625
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Thank you Vidi, I will read through the information.
but0fc0ursee
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paulg625 (10/18/2017)
I am looking for more information on face rigging a character?   How to attach the bones and where also the face painting.

Hey paulg625,
What app are you using to face rig in?
It will be extremely EZ to explain the process because have experience.

Clarity: 
The Game Bone white paper is an excellent reference to follow,
BUT...

When first learning.... the fbx display of bones IS NOT how the rig is constructed.
(When Exported....  FBX creates NEW connections... Displaying all bones linked to the ROOT.)

Example.
You see all those bones (extending from the Head) to main bone.
https://forum.reallusion.com/uploads/images/31400ad4-2e1b-4804-85a4-75d6.png

When you actually set the bones in place.... it will look something like this:
https://forum.reallusion.com/uploads/images/c9b7ad2b-9f63-4ea8-b031-d5eb.png

Note:
Reallusion uses (25) facial bones... 
~ I use (33) bones.... (fine-tuning) automated actions.
______________________________________________________________________________________

Then you "Link" the bones to the head.... (To Start).
BUT...
the bones are NOT (Zero-d Out)

In your rigging app..... You click the setting to "Freeze the Position and Rotations."
The bones are (Zero-d Out)..
BUT...
Their (Local Orientation) is NOT (Zero-d Out).


WHAT????

Stop right here and focus on this:
iClone bones (WILL INHERIT)
~ Position
~ Rotation
~ Scale

~ The action of "Freezing Positon & Rotation" ...DOES zero out the bones (LOCAL) transforms....BUT....
It does NOT zero out (LOCAL ORIENTATION).

What this means...
If a bones is "Directly Drawn from the parent to the child."
~ The child (SHARES) it's parents (Local Orientation)

Remember.... These bones are NOT DRAWN directly from it's parent.
~ They are simple placed in space.
~ Then Linked to their parent... (Head Bone).
~ The child (DOES NOT SHARE) it's parents (Local Orientation)

So Far... You froze their "Local" transforms to zero.
but... NOT their Local Orientations to MATCH their parents.

How do you (zero-out) their local orientation TO MATCH their parents????/
1. Give each bones a (New Parent)..... a null object, i.e. dummy or point helper.
2. Link the (NEW PARENTS) to the head.

ALL of the bones now have ZERO LOCAL ORIENTATION.
~ Skin it
~ 3dxch Ready
ROLL 'EM! Wow

Edited
7 Years Ago by but0fc0ursee
but0fc0ursee
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paulg625,
I trust you clearly understand what I've said... if not.... I'll slow down and show you what I mean step by step.

Assuming you understand... Continuing... (Understanding iClone Rigging)
Look closely at the the Game Bone Lips (They are LINK together).
~ Move one.... linked lip bones follow.

I do NOT do this.
Why???
If you move one (Linked bone).. the other linked bones will follow.
~ What If you DON'T want them to follow.

Fine-Tuning:
I create and XTRA bone.... I call it "Lip Down"
~ I link the lower lip bones to the Lip Down bone.
~ Move the lip down bone.... the linked bones follow
BUT...
Move one of the lips (Parent - Point Helper) and you retain "Full Control"

Create quick and EZ morphs from here.Cool

vidi
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Thank you Vidi, I will read through the information.


Thank you,  here is a figure that I had rig with this Guide  

https://city.reallusion.com/ContentPreview.aspx?i=JIC8230bdf09cf4886a5


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liebe Grüße vidi




tripfreak
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Thank you, but0fc0ursee for your explanations ! Cool
Unfortunately, for beginners it still sounds like a chinese menu. Tongue

Recently, I found this new "Auto-Rigger" from Artell for Blender: LINK
At first sight, it looks exactly like Mixamo: LINK
https://forum.reallusion.com/uploads/images/f8cf4d8e-0058-41f8-b4c8-52d1.jpg

But it also seems to include a relatively easy adjustable Face Rig:
https://forum.reallusion.com/uploads/images/ee64adca-2a96-4d95-86f7-f960.jpg

Unfortunately, its not free, but the price already starts from 17.50 (Light) to max 38.50 $ (Pro): LINK
or directly from Artell for just 33 $: LINK

At least another possibility to create a face bone rig.
Leaves the question whether or not the FBX export from Blender will finally work without problems ?




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paulg625
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Hey Tripfreak, thanks for responding. I have lightwave and am dabbling now with Blender for rigging...
but0fc0ursee
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tripfreak (10/18/2017)
Thank you, but0fc0ursee for your explanations ! Cool
Unfortunately, for beginners it still sounds like a chinese menu. Tongue

Recently, I found this new "Auto-Rigger" from Artell for Blender:

Sigh..... You learn nothing using Auto-Rigger.

paulg625,
How to Create a face bone rig?

You should change this to "How to use Auto-Rigger."
If this is what you want.... I'll step out of your way.
Enjoy


Edited
7 Years Ago by but0fc0ursee
paulg625
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Sorry ButOfCourse, I was rushing out the door and the way the page opened I somehow scrolled right past this post. Thank you for responding, I think I understand most everything you are talking about. I have a pretty good Rigging tutorial series from Lightwave. But he did a creature not a human. So...


but0fc0ursee (10/18/2017)
paulg625 (10/18/2017)
I am looking for more information on face rigging a character?   How to attach the bones and where also the face painting.

Hey paulg625,
What app are you using to face rig in?
 
 I have Lightwave and am dabbling now with Blender.
I love Lightwave but in some situations it won't play well with Iclone. ( but this could be due to me lacking experience. But, difficult to find others who have answers) 

It will be extremely EZ to explain the process because have experience.

Clarity: 
The Game Bone white paper is an excellent reference to follow,
BUT...

When first learning.... the fbx display of bones IS NOT how the rig is constructed.
(When Exported....  FBX creates NEW connections... Displaying all bones linked to the ROOT.)

Example.
You see all those bones (extending from the Head) to main bone.
https://forum.reallusion.com/uploads/images/31400ad4-2e1b-4804-85a4-75d6.png

When you actually set the bones in place.... it will look something like this:
https://forum.reallusion.com/uploads/images/c9b7ad2b-9f63-4ea8-b031-d5eb.png

Note:
Reallusion uses (25) facial bones... 
~ I use (33) bones.... (fine-tuning) automated actions.
______________________________________________________________________________________

Then you "Link" the bones to the head.... (To Start).
BUT...
the bones are NOT (Zero-d Out)

In your rigging app..... You click the setting to "Freeze the Position and Rotations."
The bones are (Zero-d Out)..
BUT...
Their (Local Orientation) is NOT (Zero-d Out).


WHAT????

I think I understand this I might have to review my Rigging stuff.  as to the Zeroing you have to do this to define the starting point of the local space right giving it a zero point Right?


Stop right here and focus on this:
iClone bones (WILL INHERIT)
~ Position
~ Rotation
~ Scale

~ The action of "Freezing Positon & Rotation" ...DOES zero out the bones (LOCAL) transforms....BUT....
It does NOT zero out (LOCAL ORIENTATION).

What this means...
If a bones is "Directly Drawn from the parent to the child."
~ The child (SHARES) it's parents (Local Orientation)

Remember.... These bones are NOT DRAWN directly from it's parent.
~ They are simple placed in space.
~ Then Linked to their parent... (Head Bone).
~ The child (DOES NOT SHARE) it's parents (Local Orientation)

So Far... You froze their "Local" transforms to zero.
but... NOT their Local Orientations to MATCH their parents.

How do you (zero-out) their local orientation TO MATCH their parents????/
1. Give each bones a (New Parent)..... a null object, i.e. dummy or point helper.
2. Link the (NEW PARENTS) to the head.


So Iclone will accept the null objects as part of the rig? What does it see them as ? is it directly as a Null?



ALL of the bones now have ZERO LOCAL ORIENTATION.
~ Skin it
~ 3dxch Ready
ROLL 'EM! Wow


OK , Semi- clear I will study a few general videos on Rigging in Blender today and get back with questions later. 
Edited
7 Years Ago by paulg625



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