Twist Bone Question "yet once again" (Simple?)
polycounter lvl 18
You know, I think I might have be weighting and constraining helper bones backwards.
Sooo.
When you have a biped, and instead of having extra useless bones, you only add 1 or 2 twists and weight the twist and the main bone (versus just the twists). Does most of the twist's weighting take place at the beggining or end of the joint?
Up to now I have been weighting the main bone closer to the origin joint and the twist where it connects.. example
(weighting using original bone as well as twist)
Upper Arm
Upper Arm twist
* (Helper Constrains to Upper Arm Twist and Lower Arm)
Lower Arm
Lower Arm twist 1
Lower Arm twist 2
OR is it supposed to be weighed like this?
Upper Arm Twist
Upper Arm
* (Helper constrains to Upper Arm and Lower Arm Twist 1)
Lower Arm Twist 1
Lower Arm Twist 2
Lower Arm
Since the twist is only taking 50% of the joint.. I'm wondering if I have been doing it backwords.
Sooo.
When you have a biped, and instead of having extra useless bones, you only add 1 or 2 twists and weight the twist and the main bone (versus just the twists). Does most of the twist's weighting take place at the beggining or end of the joint?
Up to now I have been weighting the main bone closer to the origin joint and the twist where it connects.. example
(weighting using original bone as well as twist)
Upper Arm
Upper Arm twist
* (Helper Constrains to Upper Arm Twist and Lower Arm)
Lower Arm
Lower Arm twist 1
Lower Arm twist 2
OR is it supposed to be weighed like this?
Upper Arm Twist
Upper Arm
* (Helper constrains to Upper Arm and Lower Arm Twist 1)
Lower Arm Twist 1
Lower Arm Twist 2
Lower Arm
Since the twist is only taking 50% of the joint.. I'm wondering if I have been doing it backwords.
Replies
Shoulder is here
Upper arm Twist - not as much as the arm
Upper Arm
Elbow is here
Lower Arm
Lower arm twist - takes rotation from the hand
The hand can rotate just more than 270 degrees. Try it. At the same time the shoulder is rotating only a few degrees. The elbow does less than 120 degrees.
The two bones and two twists are simply sharing that rotation out.
Shoulder
Upper Arm Twist
Upper Arm
* (Elbow Helper constrains to Upper Arm and Lower Arm)
Lower Arm
Lower Arm Twist 1
Lower Arm Twist 2
I assume the leg works the same way?
Is the elbow helper just there to take 50% of the two arm bones, to hold the shape on the elbow?
Legs are the same - the calf twist takes twist motion from the foot.
Yup.
Is the elbow helper just there to take 50% of the two arm bones, to hold the shape on the elbow?
Legs are the same - the calf twist takes twist motion from the foot.
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Yes, and thanks, already its looking better.
You guys are gonna hate me when I get full on with the facial rig...
Erik!