After you create the IK handle on the leg, you'll want to manipulate the PoleVectorX attribute to get the orientation right. For the dummy object method, create your cube (or use a locater), select it and then shift select your IK handle. Use Animate-Constrain-PoleVector. That should make your IK's orientation follow the…
I already have some pre-build skeleton, but I don't success to create myself the leg's orientation... I already give a look to the Maya documentation... with 3dsmax I easly create that stuff with : - I create a dummy, - Set his position and orientionon on the hip's bone, - create an Ik-chain on the hip and foot for…
Not sure if creating a Cube at the hips and Orient Constraining the joint to the Cube is the way to go. Try this instead. Skip the Cube and create a ikHandle right away instead, make sure it is a RP (rotate plane) ikHandle. Now create whatever object, for example a Locator. Place the new object in front of the leg, at the…