Sunday, 18 May 2014

Set Up #1 - Leg Joint Placement and IK

The next lot of posts are now going to be all the progress leading up to the deadline of the project, most of this is already done, so right now I am bringing you up too speed on everything I have done so far and I am still working on my project.

First, I created the joints within the left leg, the first joint in the chain was the left hip and ended at the toe.
leftHip > leftKnee > leftAnkle > leftFoot > leftToe.

Fig 1: Image of the Joints in the left leg
After that I then proceeded to add the IK Handles in the legs, an IK Rotate-Plane Solver which would be placed from the Hip down to the Ankle - this is so that it can be set in place for the Pole Vector that would be in place for the knee (to be covered for an upcoming post) and then added Single-Chain Solvers from the ankle to the foot, and the foot to the toe.

Fig 2: Mirroring Joints

Once the leg was set up, I had to now do the same for the right side, though if you remember from an earlier post I spoke about Mirroring Joints - which can be useful for when you need another set of joints exactly the same in terms of placement as another. In this case, that would be the legs, Got the options up for Mirroring Joints (Fig 2) and clicked on the axis I want the joints to be mirrored on (XY) and mirrored them by Orientation, I also managed to get the duplicated joints to have the word left to be replaced with right, which would mean when mirrored over - the joint chain for the right leg should be as followed:
rightHip > rightKnee > rightAnkle > rightFoot > rightToe.

Fig 3: Joints from the left have successfully been mirrored over to the right
After that, I clicked Mirror and then it was done, IK handles carried over also (Fig 3).

In the next post, I will talk about the Pole Vectors I set up in the Knees and how they'll be useful later on.

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