Shift Animation

This button shifts the keys for the selected bones at all frames. This can be used e.g. to correct for systematic bad retargeting.

The BVH files from ACCAD typically yield slooping shoulders throughout the animation. To quickly compensate for this, correct the pose for the shoulder and upper-arm bones at one frame. Exclude the meshes from the scene to improve performance, and press Shift Animation. The shoulder poses is now fixed at all frames.

Another common use is to move and rotate the hip bone to another location. E.g., if we want to stitch two actions together, the hip bone at the beginning of the second action should be at the same location as it is at the end of the first action.