Set up a retarget using default constraints
- Adaptavist ScriptRunner for Confluence Cloud (Unlicensed)
To set up a retarget using the default constraints in Shogun Post, complete the following stages listed in this section.
Prepare the target skeleton
To ensure your FBX, USD or VSR file works well as a target skeleton, review the tips in Create an optimal target skeleton.
Ensure the source skeleton is currently loaded.
Open the Subject Setup panel and select the Retargeting tab.
Load the target skeleton by clicking the Load Retarget button.
At the top of the Retargeting tab, click Map Mode.
The Map Mode button changes color and the text in the 3D Scene view changes, the play range is blank, and all skeletons are put into their base pose, indicating that you are now in map mode.
In this mode, you can pose the source and target skeletons without affecting the motion of the main clip.
In the Target Skeleton Setup section, ensure the correct bone (normally the hips or pelvis) is set as root on the target skeleton.
If necessary, right-click and select Set Root in the context menu to change it.
Select Align Skeletons to automatically align the target skeleton to the solve skeleton.
If the target skeleton doesn't fully align with the solve skeleton, adjust it manually.
For tips on how to do this:
Watch the video Vicon Shogun 1.3 Post Tutorial - Retargeting Setup
If desired, use the Target Scale controls to adjust the target skeleton's scale.
Ensure the DoFs are set. To do this:
In the Target Skeleton Setup section, in the Parts and Sides list, view the DoFs. (To do this, you may need to close the Constraints and Export Options sections).
Select any bones that should not receive animation by retargeting and use the option in the right-click context menu to disable their DoFs.
This ensures that those bones don't receive animation and helps the automation to determine which bones are to be constrained.
Modify the DoFs of each bone for its desired motion by selecting the bone and in the Attributes panel, edit the DoFs.
Using sensible DoFs produces a better retarget and animation.
Set the side and parts
In the Target Skeleton Setup section, next to Parts and Sides, click Auto Set.
This assigns the appropriate side name and part name to each bone that has active DoFs.
Side names are set by first using each bone's name, for example, if it contains
center,left,right,l_,r_, etc.If the side can't be deduced from the bone's name, its position relative to the root is used.
The Part name is set based on the bone name matching commonly used names.
Verify that the sides and parts are set correctly.
If necessary, modify them by selecting bones in the list (or elsewhere in Post) and using the Manually Set buttons above the list.
For example, if the part for the head is set to None, in the Target Skeleton Setup list, select the head and from the Body Part list above the list, select Head.
Create the retargeting constraints
Ensure the Constraints section is expanded.
Click Auto Create to automatically create a default constraint setup.
This uses the sides and parts as a mapping between the two skeletons.
The default constraint setup contains:
Position and Rotation for the root
Position and Rotation for the feet, to ensure the target skeleton feet follow the solve feet in position.
Position and Rotation for the hands to ensure the target skeleton hands can follow the solve hands in position when desired.
Rotation constraints for the rest of the bones, so that the pose of the target skeleton matches the solve skeleton.
Modify the constraints as needed - add, remove, or change the weights.
When you have finished adjusting the constraints, exit map mode by clicking Map Mode again.
Export the target skeleton and constraints as a VSR
To export the target skeleton and constraints as a VSR:
At the top of the Subject Setup panel, click the Save Retarget Setup button and if necessary, browse to the required location.
By default, the VSR is saved to: C:\Users\Public\Documents\Vicon\Retargets
Test and refine the retarget setup
We recommend testing the retarget setup on a ROM and a few takes that represent typical and extreme motions. You can do this in Live or Post, by importing the VSR.
After you have finished setting up a retarget, you may need to set up another retarget for a similar set of skeletons, for example, from a different actor to the same target skeleton, or a similar target skeleton with a different scale or proportions. To find out how to do this, see Set up a retarget based on an existing setup.