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Help with pivot angles for the feet controls

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#1

Hi,

I am new to mgear and I dont have ideas how to fix my problem so any suggestions would be appreciated!
I received a model with its feet pointing outwards
I cant touch the model and point the feet straigth forward. When I build the leg and foot chain, mgear gives me this:
Pics
The ankle control is pointing Z+ and when I rotate it, it has a “nice” offset with the model.
Anyone have an idea how to fix this?

#2

same problem here…

even if the leg component matches the rotation of the mesh (this leads in right knee-up-vector), the leg ik’s and foot roll pivots are building in world space +Z and are not aligned to the foot…

does somebody has an idea, how to get the right
axis aligning to the leg?

#3

As far as I know, in my little experience, feet needs to be aligned with z axis in order to work right with the legs components.

#4

hi,

i found the problem for that. but it needs some modifcation to the components init.py scripts…
here the original snippet of leg2jnt 01…

it uses some false transformation matrix…

self.ikcns_ctl = self.addCtl(
            self.ik_cns,
            "ikcns_ctl",
            transform.getTransformFromPos(self.guide.pos["ankle"]),
            self.color_ik,
            "null",
            w=self.size * .12,
            tp=self.root_ctl)
        attribute.setInvertMirror(self.ikcns_ctl, ["tx"])

        m = transform.getTransformLookingAt(self.guide.pos["ankle"],
                                            self.guide.pos["eff"],
                                            self.x_axis,
                                            "zx",
                                            False)

        self.ik_ctl = self.addCtl(
            self.ikcns_ctl,
            "ik_ctl",
            transform.getTransformFromPos(self.guide.pos["ankle"]),
            self.color_ik,
            "cube",
            w=self.size * .12,
            h=self.size * .12,
            d=self.size * .12)

the transform matrix m is not used in the ctrl creation, it takes the guides ankle transform…

here the corrected one…here the m matrix defines the orientation of the IKs…

m = transform.getTransformLookingAt(self.guide.pos["ankle"],
                                            self.guide.pos["eff"],
                                            self.x_axis,
                                            "zx",
                                            False)

self.ikcns_ctl = self.addCtl(
            self.ik_cns,
            "ikcns_ctl",
            m,
            self.color_ik,
            "null",
            w=self.size * .12,
            tp=self.root_ctl)
        attribute.setInvertMirror(self.ikcns_ctl, ["tx"])

        self.ik_ctl = self.addCtl(
            self.ikcns_ctl,
            "ik_ctl",
            m,
            self.color_ik,
            "cube",
            w=self.size * .12,
            h=self.size * .12,
            d=self.size * .12)

here is the fixed leg2jnt 01 and leg2jnt 02. it goes to the shifter classic comments folder
fixed_shifter_classic_components_legsIK.rar

i think all the leg components will have this, so if anybody uses something else than leg 01, 02 it has to be modified also in the others…
maybe the dev-team can make a permanent fix when it comes to updates.

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