This Tutorial will show the basics how to use the AlignTool.
First of all, a valid Biped object needs to be selected (Hand, Foot or Toe)
(This function works only with these 3 cases as they are the last part of the IK-Chain)
This tool will allow you to manually select a pivot that you can align to a snapshot.
Below is a description of the various ways in which you can select parts of the biped object to use in the align operation :
(The foot is used as an example since it has the most exceptions relating to it)
Select the foot.
Hit Select Pivot in the Pivot dialog:
You should see some additional lines and points on the biped foot object. When you mouse over these objects they will be highlighted orange/yellow. Left clicking will select this part of the foot for alignment and right clicking will deselect the operation.
The following image shows the front right pivot of the foot selected:
You can also select other points like the toe:
(In this case you would also need a snapshot of the toe)
Edges can also be selected:
(In this case, the edge of the foot will be aligned to the snapshot object, while the rotation along the local Y axis will be retained)
Forward edges can also be selected:
(The forward edge of the foot will be aligned to the snapshot object while the rotation on the local z axis will be retained)
After this, select Current Selection, Move and Snapshot to align the foot to the nearest snapshot:
Then hit Apply, Begin/End or Range to process the operation (see Operation dialog for the functionality of these buttons):
After the operation is complete, it should look something like this:
(The foot was moved to the snapshot considering the offset of the selected pivot)