IK and FK bends

Jmanbeatsminecraft · July 26, 2015

So for all of those who don't know what ik is, its a way to move limbs. IK bending controls everything with a single control:

http://gyazo.com/92da2dec436f35b6cf1c25a1a3fbb4cd

that gyazo link provides an example. Where as FK bending controls things with 2 different bones, which is what mine imator is based off of. As you control the bottom leg and top leg separately. So it looks more like this:

http://gyazo.com/4e5b5fc418d10a0d90f9f5505bd070b5

this provides a link to how FK is like, which is what mine imator is like, with 2 separate bones. both are capable of making the same positions, but Ik is easier, and more convenient.

how will this improve the animation physics?

Well, for one thing, ik is easier to use, and less time consuming, as everything is controlled by 1 "master" bone, whereas with fk, everything is controlled by 2 bones 1 "Adult/Parent" Bone [the top part of the leg and one "child/kid" bone, the bottom part of the leg. Also, another thing is that with ik, the bones stay in place, so lets say i were to move the body, the leg would stay where it was, and you would move it manually, like this:

http://gyazo.com/427db67b8218bea36a6c465551b8cfc2

Whereas with FK the legs would stay in place like this:

http://gyazo.com/351af0045b0df52ddec063e1cfedac5d

With this feature, the feet would slide less during walk/run cycles and because of this, would look more realistic, and generally better.

One final plus of IK over fk is that it also has auto bends when the body were to go downwards so that would be less effort to make it look realistic.

IK:

http://gyazo.com/e390e03b569fe21c693d972ad4b617db

FK:

http://gyazo.com/a5b9389913fdb72ac0249ea25572a77b

Takes longer for one pose... So this is why i think mine imator should have FK, hopefully glorious david sees this and considers

There would be a toggle for this, for all of those who want to keep fk, but Ik in my opinion should be added. -Jman