Calibration for camera does not allow arms to rest by puppet's side

Question

I would like to use body tracking for arm movement, because it seems to look more real than dragging arms with a mouse. Mouse arm movements must be done one-at-a-time, and when you do, you cannot see what you recorded for the other arm for position and timing.

However, after I click Calibrate while I am standing in the "A" position, from that point on the puppet will NEVER put its arms straight down to the side. This happens for ALL puppets I select from options in Puppet Maker. After I click Calibrate, from that time on the "arms-at-rest" position makes the puppet's arms look like a horseshoe.

Does anyone have an idea how I can get the resting position of the arms straight down?

Thank you in advance!

j-saito · Accepted Answer

Another quick trick w/o any changes to behaviors: bring your arms forward a bit towards the camera during the calibration so your arms during the performance will not look foreshortened more than at the time of the calibration.

j-saito · Answer

My recommendation:Body behavior: check "Left Elbow" and "Right Elbow" under "Tracked Handles"Limb IK behavior: either crank down the "Bend Strength" (has the side-effect on the knee bend) or completely disable IK on arms by selecting "Legs" in "Apply To" (may stretch arms unnaturally) This happens because there is always a slight foreshortening effect of arms seen in the camera view, which IK tries to compensate for by bending elbows. What my recommendation does is to try to respect the elbow bends as seen in the camera, instead of letting IK resolve them.

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