X-axis - Curls all four fingers into a fist.
Y-axis - Curls individual fingers in steps of 100%, 66%, 33% and 0% towards the side the bone is pointing.
Z-axis - Spreads out the fingers.
How to install the Hand Gizmo into your models:
- Delete the splines in the model and save.
- Use the XHand bones to position, scale and rotate the hands using the manipulator tools.
- Move, scale and rotate individual fingers by using the X finger bones with the manipulator tools.
- When moving the little and third fingers, make sure that ends of the GFingerPre bones of the palm are exactly at the base of the little and third fingers.
- You will also have to place the ALittleBase and AThirdBase bones at the base of the appropriate finger.
- You can move the end joints of the fingers to match your model’s mesh.
- Apply the mesh to the corresponding bones.
Red ‘A’ bones = Aim target bones.
Light Blue ‘W’ bones = Worker bones.
Green ‘G’ bones = Geometry bones to which you assign control points.
Yellow ‘X’ bones = Parent bones that contain whole elements, such as fingers.
Based on my observations, I’ve kept the middle finger still during the fanning out action and I’ve rolled the fingers either side of the middle finger so that they curl inwards slightly. Due to the latter adjustment, you probably should roll the finger splines to the same degree: on the left hand, little = -10, third = -5, index = 5 and then do the opposite to the fingers on the right.
I’ve left the end finger joint bones visible so that you can adjust it for those actions where you need to roll it backwards. The CFingersOuter bones roll the side of the hand up and down for leaning and pushing actions.
You’ll have to apply control point weighting for the joints and especially the thumb which you can do by selecting one or more control points in modelling mode (F5), right clicking them and selecting ‘Edit CP Weights’. Then you will find a window appears which you can highlight the control points on the left, assign bones from a drop down box at the bottom and allocate the percentage of influence they have by either manually entering figures yourself or using the ‘Balance’ buttons at the bottom on the left.
I think they are all the details necessary for this gizmo. I hope others find it as useful as I have.