"What about IK?" I never used it, and find it more irritating than anything else. Maybe its useful for animations or something.

scifiguy

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I don't do animations, but I have found IK to be useful especially when tweaking poses. Turn IK on when you want to move that foot or hand just a little bit that's easier than reposing the entire arm or leg. I use IK a lot when I'm trying to get a figure's feet firmly on the ground.

IK is also a great tool when you find that a pose is too stiff be be natural, and you want to e.g. slant the hips or shoulders a little. Turn IK on for both hands and feet, and slant away! Hands and feet will stay in the same position while you tune the hips and shoulders, and the pose will look much better afterwards.